diff --git a/designer-base/src/main/java/com/fr/design/data/datapane/connect/DBCPAttrPane.java b/designer-base/src/main/java/com/fr/design/data/datapane/connect/DBCPAttrPane.java
index 58a021812..f65b6dc12 100644
--- a/designer-base/src/main/java/com/fr/design/data/datapane/connect/DBCPAttrPane.java
+++ b/designer-base/src/main/java/com/fr/design/data/datapane/connect/DBCPAttrPane.java
@@ -42,6 +42,7 @@ public class DBCPAttrPane extends BasicPane {
     private static final int ORACLE_DEFAULT_FETCHSIZE = 128;
     private static final int DB2_DEFAULT_FETCHSIZE = 50;
     private static final int POSTGRE_DEFAULT_FETCHSIZE = 10000;
+    private static final int EMPTY_FETCHSIZE = -2;
     // carl:DBCP的一些属性
     private IntegerEditor DBCP_INITIAL_SIZE = new IntegerEditor();
     private IntegerEditor DBCP_MAX_ACTIVE = new IntegerEditor();
@@ -125,7 +126,11 @@ public class DBCPAttrPane extends BasicPane {
         this.DBCP_TIMEBETWEENEVICTIONRUNSMILLS.setValue(dbcpAttr.getTimeBetweenEvictionRunsMillis());
         Integer fetchSize = DEFAULT_FETCHSIZE_MAP.get(JDBCConnectionDef.getInstance().getDatabaseName());
         if (fetchSize != null) {
-            this.FETCHSIZE.setText(jdbcDatabase.getFetchSize() == -1 ? String.valueOf(fetchSize) : String.valueOf(jdbcDatabase.getFetchSize()));
+            if (jdbcDatabase.getFetchSize() == EMPTY_FETCHSIZE) {
+                this.FETCHSIZE.setText(StringUtils.EMPTY);
+            } else {
+                this.FETCHSIZE.setText(jdbcDatabase.getFetchSize() == -1 ? String.valueOf(fetchSize) : String.valueOf(jdbcDatabase.getFetchSize()));
+            }
         }
     }
 
@@ -149,7 +154,11 @@ public class DBCPAttrPane extends BasicPane {
         dbcpAttr.setTimeBetweenEvictionRunsMillis(((Number) this.DBCP_TIMEBETWEENEVICTIONRUNSMILLS.getValue()).intValue());
         Integer fetchSize = DEFAULT_FETCHSIZE_MAP.get(JDBCConnectionDef.getInstance().getDatabaseName());
         if (fetchSize != null) {
-            jdbcDatabase.setFetchSize(Integer.parseInt(this.FETCHSIZE.getText()));
+            if (StringUtils.isEmpty(this.FETCHSIZE.getText())) {
+                jdbcDatabase.setFetchSize(EMPTY_FETCHSIZE);
+            } else {
+                jdbcDatabase.setFetchSize(Integer.parseInt(this.FETCHSIZE.getText()));
+            }
         }
     }