diff --git a/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/controller/DataAnalysisController.java b/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/controller/DataAnalysisController.java
index a735433b73..c69c1d969c 100644
--- a/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/controller/DataAnalysisController.java
+++ b/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/controller/DataAnalysisController.java
@@ -27,9 +27,9 @@ import org.apache.dolphinscheduler.api.dto.CommandStateCount;
 import org.apache.dolphinscheduler.api.exceptions.ApiException;
 import org.apache.dolphinscheduler.api.service.DataAnalysisService;
 import org.apache.dolphinscheduler.api.utils.Result;
-import org.apache.dolphinscheduler.api.vo.TaskInstanceCountVo;
-import org.apache.dolphinscheduler.api.vo.WorkflowDefinitionCountVo;
-import org.apache.dolphinscheduler.api.vo.WorkflowInstanceCountVo;
+import org.apache.dolphinscheduler.api.vo.TaskInstanceCountVO;
+import org.apache.dolphinscheduler.api.vo.WorkflowDefinitionCountVO;
+import org.apache.dolphinscheduler.api.vo.WorkflowInstanceCountVO;
 import org.apache.dolphinscheduler.common.constants.Constants;
 import org.apache.dolphinscheduler.dao.entity.User;
 
@@ -71,7 +71,7 @@ public class DataAnalysisController extends BaseController {
     @GetMapping(value = "/task-state-count")
     @ResponseStatus(HttpStatus.OK)
     @ApiException(TASK_INSTANCE_STATE_COUNT_ERROR)
-    public Result<TaskInstanceCountVo> getTaskInstanceStateCount(@Parameter(hidden = true) @RequestAttribute(value = Constants.SESSION_USER) User loginUser,
+    public Result<TaskInstanceCountVO> getTaskInstanceStateCount(@Parameter(hidden = true) @RequestAttribute(value = Constants.SESSION_USER) User loginUser,
                                                                  @RequestParam(value = "startDate", required = false) String startDate,
                                                                  @RequestParam(value = "endDate", required = false) String endDate,
                                                                  @RequestParam(value = "projectCode", required = false) Long projectCode) {
@@ -91,7 +91,7 @@ public class DataAnalysisController extends BaseController {
     @GetMapping(value = "/process-state-count")
     @ResponseStatus(HttpStatus.OK)
     @ApiException(COUNT_PROCESS_INSTANCE_STATE_ERROR)
-    public Result<WorkflowInstanceCountVo> getWorkflowInstanceStateCount(@Parameter(hidden = true) @RequestAttribute(value = Constants.SESSION_USER) User loginUser,
+    public Result<WorkflowInstanceCountVO> getWorkflowInstanceStateCount(@Parameter(hidden = true) @RequestAttribute(value = Constants.SESSION_USER) User loginUser,
                                                                          @RequestParam(value = "startDate", required = false) String startDate,
                                                                          @RequestParam(value = "endDate", required = false) String endDate,
                                                                          @RequestParam(value = "projectCode", required = false) Long projectCode) {
@@ -109,7 +109,7 @@ public class DataAnalysisController extends BaseController {
     @GetMapping(value = "/define-user-count")
     @ResponseStatus(HttpStatus.OK)
     @ApiException(COUNT_PROCESS_DEFINITION_USER_ERROR)
-    public Result<WorkflowDefinitionCountVo> countDefinitionByUser(@Parameter(hidden = true) @RequestAttribute(value = Constants.SESSION_USER) User loginUser,
+    public Result<WorkflowDefinitionCountVO> countDefinitionByUser(@Parameter(hidden = true) @RequestAttribute(value = Constants.SESSION_USER) User loginUser,
                                                                    @RequestParam(value = "projectCode", required = false) Long projectCode) {
         if (projectCode == null) {
             return Result.success(dataAnalysisService.getAllWorkflowDefinitionCount(loginUser));
diff --git a/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/DataAnalysisService.java b/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/DataAnalysisService.java
index 11488776f1..351a3d5c91 100644
--- a/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/DataAnalysisService.java
+++ b/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/DataAnalysisService.java
@@ -21,9 +21,9 @@ import org.apache.dolphinscheduler.api.dto.CommandStateCount;
 import org.apache.dolphinscheduler.api.dto.DefineUserDto;
 import org.apache.dolphinscheduler.api.dto.TaskCountDto;
 import org.apache.dolphinscheduler.api.dto.project.StatisticsStateRequest;
-import org.apache.dolphinscheduler.api.vo.TaskInstanceCountVo;
-import org.apache.dolphinscheduler.api.vo.WorkflowDefinitionCountVo;
-import org.apache.dolphinscheduler.api.vo.WorkflowInstanceCountVo;
+import org.apache.dolphinscheduler.api.vo.TaskInstanceCountVO;
+import org.apache.dolphinscheduler.api.vo.WorkflowDefinitionCountVO;
+import org.apache.dolphinscheduler.api.vo.WorkflowInstanceCountVO;
 import org.apache.dolphinscheduler.dao.entity.User;
 
 import java.util.List;
@@ -34,27 +34,27 @@ import java.util.Map;
  */
 public interface DataAnalysisService {
 
-    TaskInstanceCountVo getTaskInstanceStateCountByProject(User loginUser,
+    TaskInstanceCountVO getTaskInstanceStateCountByProject(User loginUser,
                                                            Long projectCode,
                                                            String startDate,
                                                            String endDate);
 
-    TaskInstanceCountVo getAllTaskInstanceStateCount(User loginUser,
+    TaskInstanceCountVO getAllTaskInstanceStateCount(User loginUser,
                                                      String startDate,
                                                      String endDate);
 
-    WorkflowInstanceCountVo getWorkflowInstanceStateCountByProject(User loginUser,
+    WorkflowInstanceCountVO getWorkflowInstanceStateCountByProject(User loginUser,
                                                                    Long projectCodes,
                                                                    String startDate,
                                                                    String endDate);
 
-    WorkflowInstanceCountVo getAllWorkflowInstanceStateCount(User loginUser,
+    WorkflowInstanceCountVO getAllWorkflowInstanceStateCount(User loginUser,
                                                              String startDate,
                                                              String endDate);
 
-    WorkflowDefinitionCountVo getWorkflowDefinitionCountByProject(User loginUser, Long projectCode);
+    WorkflowDefinitionCountVO getWorkflowDefinitionCountByProject(User loginUser, Long projectCode);
 
-    WorkflowDefinitionCountVo getAllWorkflowDefinitionCount(User loginUser);
+    WorkflowDefinitionCountVO getAllWorkflowDefinitionCount(User loginUser);
 
     /**
      * statistics the workflow quantities of certain user
diff --git a/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/DataAnalysisServiceImpl.java b/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/DataAnalysisServiceImpl.java
index 84c5ca17f8..36c9c2b8c1 100644
--- a/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/DataAnalysisServiceImpl.java
+++ b/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/DataAnalysisServiceImpl.java
@@ -27,9 +27,9 @@ import org.apache.dolphinscheduler.api.enums.Status;
 import org.apache.dolphinscheduler.api.exceptions.ServiceException;
 import org.apache.dolphinscheduler.api.service.DataAnalysisService;
 import org.apache.dolphinscheduler.api.service.ProjectService;
-import org.apache.dolphinscheduler.api.vo.TaskInstanceCountVo;
-import org.apache.dolphinscheduler.api.vo.WorkflowDefinitionCountVo;
-import org.apache.dolphinscheduler.api.vo.WorkflowInstanceCountVo;
+import org.apache.dolphinscheduler.api.vo.TaskInstanceCountVO;
+import org.apache.dolphinscheduler.api.vo.WorkflowDefinitionCountVO;
+import org.apache.dolphinscheduler.api.vo.WorkflowInstanceCountVO;
 import org.apache.dolphinscheduler.common.constants.Constants;
 import org.apache.dolphinscheduler.common.enums.AuthorizationType;
 import org.apache.dolphinscheduler.common.enums.CommandType;
@@ -105,7 +105,7 @@ public class DataAnalysisServiceImpl extends BaseServiceImpl implements DataAnal
     private TaskDefinitionMapper taskDefinitionMapper;
 
     @Override
-    public TaskInstanceCountVo getTaskInstanceStateCountByProject(User loginUser,
+    public TaskInstanceCountVO getTaskInstanceStateCountByProject(User loginUser,
                                                                   Long projectCode,
                                                                   String startDate,
                                                                   String endDate) {
@@ -114,26 +114,26 @@ public class DataAnalysisServiceImpl extends BaseServiceImpl implements DataAnal
         Date end = endDate == null ? null : transformDate(endDate);
         List<TaskInstanceStatusCountDto> taskInstanceStatusCounts =
                 taskInstanceMapper.countTaskInstanceStateByProjectCodes(start, end, Lists.newArrayList(projectCode));
-        return TaskInstanceCountVo.of(taskInstanceStatusCounts);
+        return TaskInstanceCountVO.of(taskInstanceStatusCounts);
     }
 
     @Override
-    public TaskInstanceCountVo getAllTaskInstanceStateCount(User loginUser,
+    public TaskInstanceCountVO getAllTaskInstanceStateCount(User loginUser,
                                                             String startDate,
                                                             String endDate) {
         List<Long> projectCodes = projectService.getAuthorizedProjectCodes(loginUser);
         if (CollectionUtils.isEmpty(projectCodes)) {
-            return TaskInstanceCountVo.empty();
+            return TaskInstanceCountVO.empty();
         }
         Date start = startDate == null ? null : transformDate(startDate);
         Date end = endDate == null ? null : transformDate(endDate);
         List<TaskInstanceStatusCountDto> taskInstanceStatusCounts =
                 taskInstanceMapper.countTaskInstanceStateByProjectCodes(start, end, projectCodes);
-        return TaskInstanceCountVo.of(taskInstanceStatusCounts);
+        return TaskInstanceCountVO.of(taskInstanceStatusCounts);
     }
 
     @Override
-    public WorkflowInstanceCountVo getWorkflowInstanceStateCountByProject(User loginUser,
+    public WorkflowInstanceCountVO getWorkflowInstanceStateCountByProject(User loginUser,
                                                                           Long projectCode,
                                                                           String startDate,
                                                                           String endDate) {
@@ -142,40 +142,40 @@ public class DataAnalysisServiceImpl extends BaseServiceImpl implements DataAnal
         Date end = endDate == null ? null : transformDate(endDate);
         List<WorkflowInstanceStatusCountDto> workflowInstanceStatusCountDtos = processInstanceMapper
                 .countWorkflowInstanceStateByProjectCodes(start, end, Lists.newArrayList(projectCode));
-        return WorkflowInstanceCountVo.of(workflowInstanceStatusCountDtos);
+        return WorkflowInstanceCountVO.of(workflowInstanceStatusCountDtos);
     }
 
     @Override
-    public WorkflowInstanceCountVo getAllWorkflowInstanceStateCount(User loginUser,
+    public WorkflowInstanceCountVO getAllWorkflowInstanceStateCount(User loginUser,
                                                                     String startDate,
                                                                     String endDate) {
         List<Long> projectCodes = projectService.getAuthorizedProjectCodes(loginUser);
         if (CollectionUtils.isEmpty(projectCodes)) {
-            return WorkflowInstanceCountVo.empty();
+            return WorkflowInstanceCountVO.empty();
         }
         Date start = startDate == null ? null : transformDate(startDate);
         Date end = endDate == null ? null : transformDate(endDate);
 
         List<WorkflowInstanceStatusCountDto> workflowInstanceStatusCountDtos =
                 processInstanceMapper.countWorkflowInstanceStateByProjectCodes(start, end, projectCodes);
-        return WorkflowInstanceCountVo.of(workflowInstanceStatusCountDtos);
+        return WorkflowInstanceCountVO.of(workflowInstanceStatusCountDtos);
     }
 
     @Override
-    public WorkflowDefinitionCountVo getWorkflowDefinitionCountByProject(User loginUser, Long projectCode) {
+    public WorkflowDefinitionCountVO getWorkflowDefinitionCountByProject(User loginUser, Long projectCode) {
         projectService.checkProjectAndAuthThrowException(loginUser, projectCode, PROJECT_OVERVIEW);
         List<WorkflowDefinitionCountDto> workflowDefinitionCounts =
                 processDefinitionMapper.countDefinitionByProjectCodes(Lists.newArrayList(projectCode));
-        return WorkflowDefinitionCountVo.of(workflowDefinitionCounts);
+        return WorkflowDefinitionCountVO.of(workflowDefinitionCounts);
     }
 
     @Override
-    public WorkflowDefinitionCountVo getAllWorkflowDefinitionCount(User loginUser) {
+    public WorkflowDefinitionCountVO getAllWorkflowDefinitionCount(User loginUser) {
         List<Long> projectCodes = projectService.getAuthorizedProjectCodes(loginUser);
         if (CollectionUtils.isEmpty(projectCodes)) {
-            return WorkflowDefinitionCountVo.empty();
+            return WorkflowDefinitionCountVO.empty();
         }
-        return WorkflowDefinitionCountVo.of(processDefinitionMapper.countDefinitionByProjectCodes(projectCodes));
+        return WorkflowDefinitionCountVO.of(processDefinitionMapper.countDefinitionByProjectCodes(projectCodes));
     }
 
     @Override
diff --git a/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/SchedulerServiceImpl.java b/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/SchedulerServiceImpl.java
index ead8aa35b6..80e59670f7 100644
--- a/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/SchedulerServiceImpl.java
+++ b/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/SchedulerServiceImpl.java
@@ -31,7 +31,7 @@ import org.apache.dolphinscheduler.api.service.ProjectService;
 import org.apache.dolphinscheduler.api.service.SchedulerService;
 import org.apache.dolphinscheduler.api.utils.PageInfo;
 import org.apache.dolphinscheduler.api.utils.Result;
-import org.apache.dolphinscheduler.api.vo.ScheduleVo;
+import org.apache.dolphinscheduler.api.vo.ScheduleVO;
 import org.apache.dolphinscheduler.common.constants.Constants;
 import org.apache.dolphinscheduler.common.enums.FailureStrategy;
 import org.apache.dolphinscheduler.common.enums.Priority;
@@ -462,12 +462,12 @@ public class SchedulerServiceImpl extends BaseServiceImpl implements SchedulerSe
                 scheduleMapper.queryByProjectAndProcessDefineCodePaging(page, projectCode, processDefineCode,
                         searchVal);
 
-        List<ScheduleVo> scheduleList = new ArrayList<>();
+        List<ScheduleVO> scheduleList = new ArrayList<>();
         for (Schedule schedule : schedulePage.getRecords()) {
-            scheduleList.add(new ScheduleVo(schedule));
+            scheduleList.add(new ScheduleVO(schedule));
         }
 
-        PageInfo<ScheduleVo> pageInfo = new PageInfo<>(pageNo, pageSize);
+        PageInfo<ScheduleVO> pageInfo = new PageInfo<>(pageNo, pageSize);
         pageInfo.setTotal((int) schedulePage.getTotal());
         pageInfo.setTotalList(scheduleList);
         result.setData(pageInfo);
@@ -528,9 +528,9 @@ public class SchedulerServiceImpl extends BaseServiceImpl implements SchedulerSe
         }
 
         List<Schedule> schedules = scheduleMapper.querySchedulerListByProjectName(project.getName());
-        List<ScheduleVo> scheduleList = new ArrayList<>();
+        List<ScheduleVO> scheduleList = new ArrayList<>();
         for (Schedule schedule : schedules) {
-            scheduleList.add(new ScheduleVo(schedule));
+            scheduleList.add(new ScheduleVO(schedule));
         }
 
         result.put(Constants.DATA_LIST, scheduleList);
diff --git a/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/TaskDefinitionServiceImpl.java b/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/TaskDefinitionServiceImpl.java
index ba4f584c01..4a0c3f8b68 100644
--- a/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/TaskDefinitionServiceImpl.java
+++ b/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/TaskDefinitionServiceImpl.java
@@ -39,7 +39,7 @@ import org.apache.dolphinscheduler.api.service.ProjectService;
 import org.apache.dolphinscheduler.api.service.TaskDefinitionService;
 import org.apache.dolphinscheduler.api.utils.PageInfo;
 import org.apache.dolphinscheduler.api.utils.Result;
-import org.apache.dolphinscheduler.api.vo.TaskDefinitionVo;
+import org.apache.dolphinscheduler.api.vo.TaskDefinitionVO;
 import org.apache.dolphinscheduler.common.constants.Constants;
 import org.apache.dolphinscheduler.common.enums.AuthorizationType;
 import org.apache.dolphinscheduler.common.enums.ConditionType;
@@ -1167,7 +1167,7 @@ public class TaskDefinitionServiceImpl extends BaseServiceImpl implements TaskDe
                 taskRelationList = taskRelationList.stream()
                         .filter(v -> v.getPreTaskCode() != 0).collect(Collectors.toList());
             }
-            TaskDefinitionVo taskDefinitionVo = TaskDefinitionVo.fromTaskDefinition(taskDefinition);
+            TaskDefinitionVO taskDefinitionVo = TaskDefinitionVO.fromTaskDefinition(taskDefinition);
             taskDefinitionVo.setProcessTaskRelationList(taskRelationList);
             result.put(Constants.DATA_LIST, taskDefinitionVo);
             putMsg(result, Status.SUCCESS);
diff --git a/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/vo/ScheduleVo.java b/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/vo/ScheduleVO.java
similarity index 98%
rename from dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/vo/ScheduleVo.java
rename to dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/vo/ScheduleVO.java
index 2c5429e53a..2b5dd55adb 100644
--- a/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/vo/ScheduleVo.java
+++ b/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/vo/ScheduleVO.java
@@ -30,7 +30,7 @@ import java.util.Date;
 import lombok.Data;
 
 @Data
-public class ScheduleVo {
+public class ScheduleVO {
 
     private int id;
 
@@ -140,7 +140,7 @@ public class ScheduleVo {
      */
     private String environmentName;
 
-    public ScheduleVo(Schedule schedule) {
+    public ScheduleVO(Schedule schedule) {
         this.setId(schedule.getId());
         this.setCrontab(schedule.getCrontab());
         this.setProjectName(schedule.getProjectName());
diff --git a/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/vo/TaskDefinitionVo.java b/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/vo/TaskDefinitionVO.java
similarity index 85%
rename from dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/vo/TaskDefinitionVo.java
rename to dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/vo/TaskDefinitionVO.java
index 4a38842349..801bfc01bc 100644
--- a/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/vo/TaskDefinitionVo.java
+++ b/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/vo/TaskDefinitionVO.java
@@ -31,22 +31,22 @@ import org.springframework.beans.BeanUtils;
  * @author fanwanlong
  */
 @Data
-public class TaskDefinitionVo extends TaskDefinition {
+public class TaskDefinitionVO extends TaskDefinition {
 
     /**
      * process task related list
      */
     private List<ProcessTaskRelation> processTaskRelationList;
 
-    public TaskDefinitionVo() {
+    public TaskDefinitionVO() {
     }
 
-    public TaskDefinitionVo(List<ProcessTaskRelation> processTaskRelationList) {
+    public TaskDefinitionVO(List<ProcessTaskRelation> processTaskRelationList) {
         this.processTaskRelationList = processTaskRelationList;
     }
 
-    public static TaskDefinitionVo fromTaskDefinition(TaskDefinition taskDefinition) {
-        TaskDefinitionVo taskDefinitionVo = new TaskDefinitionVo();
+    public static TaskDefinitionVO fromTaskDefinition(TaskDefinition taskDefinition) {
+        TaskDefinitionVO taskDefinitionVo = new TaskDefinitionVO();
         BeanUtils.copyProperties(taskDefinition, taskDefinitionVo);
         if (TimeoutFlag.CLOSE == taskDefinition.getTimeoutFlag()) {
             taskDefinitionVo.setTimeoutNotifyStrategy(null);
diff --git a/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/vo/TaskInstanceCountVo.java b/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/vo/TaskInstanceCountVO.java
similarity index 91%
rename from dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/vo/TaskInstanceCountVo.java
rename to dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/vo/TaskInstanceCountVO.java
index d55cfc4f78..599385b006 100644
--- a/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/vo/TaskInstanceCountVo.java
+++ b/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/vo/TaskInstanceCountVO.java
@@ -34,17 +34,17 @@ import lombok.NoArgsConstructor;
 @Data
 @NoArgsConstructor
 @AllArgsConstructor
-public class TaskInstanceCountVo {
+public class TaskInstanceCountVO {
 
     private int totalCount;
 
     private List<TaskInstanceStatusCountDto> taskInstanceStatusCounts;
 
-    public static TaskInstanceCountVo empty() {
+    public static TaskInstanceCountVO empty() {
         return of(Collections.emptyList());
     }
 
-    public static TaskInstanceCountVo of(List<TaskInstanceStatusCountDto> taskInstanceStatusCounts) {
+    public static TaskInstanceCountVO of(List<TaskInstanceStatusCountDto> taskInstanceStatusCounts) {
         taskInstanceStatusCounts = new ArrayList<>(taskInstanceStatusCounts);
 
         Map<TaskExecutionStatus, TaskInstanceStatusCountDto> taskInstanceStatusCountMap =
@@ -57,7 +57,7 @@ public class TaskInstanceCountVo {
             }
         }
 
-        TaskInstanceCountVo taskInstanceCountVo = new TaskInstanceCountVo();
+        TaskInstanceCountVO taskInstanceCountVo = new TaskInstanceCountVO();
         taskInstanceCountVo.setTaskInstanceStatusCounts(taskInstanceStatusCounts);
         taskInstanceCountVo
                 .setTotalCount(taskInstanceStatusCounts.stream().mapToInt(TaskInstanceStatusCountDto::getCount).sum());
diff --git a/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/vo/WorkflowDefinitionCountVo.java b/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/vo/WorkflowDefinitionCountVO.java
similarity index 84%
rename from dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/vo/WorkflowDefinitionCountVo.java
rename to dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/vo/WorkflowDefinitionCountVO.java
index 85435375d9..62db841f6e 100644
--- a/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/vo/WorkflowDefinitionCountVo.java
+++ b/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/vo/WorkflowDefinitionCountVO.java
@@ -31,21 +31,21 @@ import lombok.NoArgsConstructor;
 @Data
 @NoArgsConstructor
 @AllArgsConstructor
-public class WorkflowDefinitionCountVo {
+public class WorkflowDefinitionCountVO {
 
     private int count;
 
     private List<WorkflowDefinitionCountDto> userList;
 
-    public static WorkflowDefinitionCountVo empty() {
-        return new WorkflowDefinitionCountVo(0, Collections.emptyList());
+    public static WorkflowDefinitionCountVO empty() {
+        return new WorkflowDefinitionCountVO(0, Collections.emptyList());
     }
 
-    public static WorkflowDefinitionCountVo of(List<WorkflowDefinitionCountDto> workflowDefinitionCounts) {
+    public static WorkflowDefinitionCountVO of(List<WorkflowDefinitionCountDto> workflowDefinitionCounts) {
         if (CollectionUtils.isEmpty(workflowDefinitionCounts)) {
             return empty();
         }
-        WorkflowDefinitionCountVo workflowDefinitionCountVo = new WorkflowDefinitionCountVo();
+        WorkflowDefinitionCountVO workflowDefinitionCountVo = new WorkflowDefinitionCountVO();
         workflowDefinitionCountVo.setUserList(workflowDefinitionCounts);
         workflowDefinitionCountVo
                 .setCount(workflowDefinitionCounts.stream().mapToInt(WorkflowDefinitionCountDto::getCount).sum());
diff --git a/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/vo/WorkflowInstanceCountVo.java b/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/vo/WorkflowInstanceCountVO.java
similarity index 91%
rename from dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/vo/WorkflowInstanceCountVo.java
rename to dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/vo/WorkflowInstanceCountVO.java
index 92380982ad..cd6e8b1d02 100644
--- a/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/vo/WorkflowInstanceCountVo.java
+++ b/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/vo/WorkflowInstanceCountVO.java
@@ -34,17 +34,17 @@ import lombok.NoArgsConstructor;
 @Data
 @NoArgsConstructor
 @AllArgsConstructor
-public class WorkflowInstanceCountVo {
+public class WorkflowInstanceCountVO {
 
     private int totalCount;
 
     private List<WorkflowInstanceStatusCountDto> workflowInstanceStatusCounts;
 
-    public static WorkflowInstanceCountVo empty() {
+    public static WorkflowInstanceCountVO empty() {
         return of(Collections.emptyList());
     }
 
-    public static WorkflowInstanceCountVo of(List<WorkflowInstanceStatusCountDto> workflowInstanceStatusCountDtos) {
+    public static WorkflowInstanceCountVO of(List<WorkflowInstanceStatusCountDto> workflowInstanceStatusCountDtos) {
         workflowInstanceStatusCountDtos = new ArrayList<>(workflowInstanceStatusCountDtos);
 
         Map<WorkflowExecutionStatus, WorkflowInstanceStatusCountDto> workflowExecutionStatusWorkflowInstanceStatusCountMap =
@@ -56,7 +56,7 @@ public class WorkflowInstanceCountVo {
             }
         }
 
-        WorkflowInstanceCountVo workflowInstanceCountVo = new WorkflowInstanceCountVo();
+        WorkflowInstanceCountVO workflowInstanceCountVo = new WorkflowInstanceCountVO();
         workflowInstanceCountVo.setWorkflowInstanceStatusCounts(workflowInstanceStatusCountDtos);
         workflowInstanceCountVo.setTotalCount(
                 workflowInstanceStatusCountDtos.stream().mapToInt(WorkflowInstanceStatusCountDto::getCount).sum());
diff --git a/dolphinscheduler-api/src/test/java/org/apache/dolphinscheduler/api/controller/DataAnalysisControllerTest.java b/dolphinscheduler-api/src/test/java/org/apache/dolphinscheduler/api/controller/DataAnalysisControllerTest.java
index 30b30da607..2e9961b5d2 100644
--- a/dolphinscheduler-api/src/test/java/org/apache/dolphinscheduler/api/controller/DataAnalysisControllerTest.java
+++ b/dolphinscheduler-api/src/test/java/org/apache/dolphinscheduler/api/controller/DataAnalysisControllerTest.java
@@ -24,8 +24,8 @@ import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.
 
 import org.apache.dolphinscheduler.api.enums.Status;
 import org.apache.dolphinscheduler.api.utils.Result;
-import org.apache.dolphinscheduler.api.vo.TaskInstanceCountVo;
-import org.apache.dolphinscheduler.api.vo.WorkflowInstanceCountVo;
+import org.apache.dolphinscheduler.api.vo.TaskInstanceCountVO;
+import org.apache.dolphinscheduler.api.vo.WorkflowInstanceCountVO;
 import org.apache.dolphinscheduler.common.utils.JSONUtils;
 import org.apache.dolphinscheduler.dao.entity.Project;
 import org.apache.dolphinscheduler.dao.mapper.ProjectMapper;
@@ -77,8 +77,8 @@ public class DataAnalysisControllerTest extends AbstractControllerTest {
                 .andExpect(status().isOk())
                 .andExpect(content().contentType(MediaType.APPLICATION_JSON))
                 .andReturn();
-        Result<TaskInstanceCountVo> result = JSONUtils.parseObject(mvcResult.getResponse().getContentAsString(),
-                new TypeReference<Result<TaskInstanceCountVo>>() {
+        Result<TaskInstanceCountVO> result = JSONUtils.parseObject(mvcResult.getResponse().getContentAsString(),
+                new TypeReference<Result<TaskInstanceCountVO>>() {
                 });
         assertThat(result.getCode())
                 .isNotNull()
@@ -101,8 +101,8 @@ public class DataAnalysisControllerTest extends AbstractControllerTest {
                 .andExpect(status().isOk())
                 .andExpect(content().contentType(MediaType.APPLICATION_JSON))
                 .andReturn();
-        Result<WorkflowInstanceCountVo> result = JSONUtils.parseObject(mvcResult.getResponse().getContentAsString(),
-                new TypeReference<Result<WorkflowInstanceCountVo>>() {
+        Result<WorkflowInstanceCountVO> result = JSONUtils.parseObject(mvcResult.getResponse().getContentAsString(),
+                new TypeReference<Result<WorkflowInstanceCountVO>>() {
                 });
         assertThat(result.getCode())
                 .isEqualTo(Status.SUCCESS.getCode());
diff --git a/dolphinscheduler-api/src/test/java/org/apache/dolphinscheduler/api/service/DataAnalysisServiceTest.java b/dolphinscheduler-api/src/test/java/org/apache/dolphinscheduler/api/service/DataAnalysisServiceTest.java
index 112a69db9d..32033cc2af 100644
--- a/dolphinscheduler-api/src/test/java/org/apache/dolphinscheduler/api/service/DataAnalysisServiceTest.java
+++ b/dolphinscheduler-api/src/test/java/org/apache/dolphinscheduler/api/service/DataAnalysisServiceTest.java
@@ -32,7 +32,7 @@ import org.apache.dolphinscheduler.api.enums.Status;
 import org.apache.dolphinscheduler.api.exceptions.ServiceException;
 import org.apache.dolphinscheduler.api.permission.ResourcePermissionCheckService;
 import org.apache.dolphinscheduler.api.service.impl.DataAnalysisServiceImpl;
-import org.apache.dolphinscheduler.api.vo.TaskInstanceCountVo;
+import org.apache.dolphinscheduler.api.vo.TaskInstanceCountVO;
 import org.apache.dolphinscheduler.common.constants.Constants;
 import org.apache.dolphinscheduler.common.enums.AuthorizationType;
 import org.apache.dolphinscheduler.common.enums.CommandType;
@@ -201,7 +201,7 @@ public class DataAnalysisServiceTest {
         user.setUserType(UserType.GENERAL_USER);
         when(taskInstanceMapper.countTaskInstanceStateByProjectCodes(any(), any(), any()))
                 .thenReturn(Collections.emptyList());
-        TaskInstanceCountVo taskInstanceStateCountByProject =
+        TaskInstanceCountVO taskInstanceStateCountByProject =
                 dataAnalysisServiceImpl.getTaskInstanceStateCountByProject(user, 1L, null, null);
         assertThat(taskInstanceStateCountByProject).isNotNull();
     }