diff --git a/wmserver/test/unittest/display_group_controller_test.cpp b/wmserver/test/unittest/display_group_controller_test.cpp
index 91ecd1a00b945a16bdbc7ffc83a76001fa3e2e7b..94deaeee22178e7a676db5dd712807244f41b943 100644
--- a/wmserver/test/unittest/display_group_controller_test.cpp
+++ b/wmserver/test/unittest/display_group_controller_test.cpp
@@ -545,6 +545,7 @@ HWTEST_F(DisplayGroupControllerTest, MoveCrossNodeToTargetDisplay01, TestSize.Le
     auto showingDisplays = child->GetShowingDisplays();
     ASSERT_NE(0, showingDisplays.size());
     ASSERT_EQ(0, showingDisplays[0]);
+    node1->children_.pop_back();
 }
 
 /**