diff --git a/designer-realize/src/main/java/com/fr/design/actions/replace/utils/ReplaceUtils.java b/designer-realize/src/main/java/com/fr/design/actions/replace/utils/ReplaceUtils.java
index 786ca7c083..a9ad21fd2e 100644
--- a/designer-realize/src/main/java/com/fr/design/actions/replace/utils/ReplaceUtils.java
+++ b/designer-realize/src/main/java/com/fr/design/actions/replace/utils/ReplaceUtils.java
@@ -778,10 +778,8 @@ public class ReplaceUtils {
                 for (int k = 0; k < ((ListCondition) condition).getJoinConditionCount(); k++) {
                     JoinCondition joinCondition = ((ListCondition) condition).getJoinCondition(k);
                     Condition obCondition = joinCondition.getCondition();
-                    if (obCondition != null) {
-                        if (obCondition instanceof CommonCondition) {
-                            ans.addAll(searchCondition0((CommonCondition) obCondition));
-                        }
+                    if (obCondition instanceof CommonCondition) {
+                        ans.addAll(searchCondition0((CommonCondition) obCondition));
                     }
                 }
             }