diff --git a/chart_plugin/src/slt_space/slt_space_draw.cpp b/chart_plugin/src/slt_space/slt_space_draw.cpp
index 99839d45d0f8f3bba2829aa3086bf75a93c9f76f..5430f0f1321436e481c831728b5828ed7677b5c3 100755
--- a/chart_plugin/src/slt_space/slt_space_draw.cpp
+++ b/chart_plugin/src/slt_space/slt_space_draw.cpp
@@ -143,6 +143,9 @@ void SltSpaceDraw::DrawObjects(mglGraph *mglGraphPtr) const
 
     if (spaceDisplayPtr->GetIsTopicMessageComing()) {
         spaceDisplayPtr->SetIsTopicMessageComing(false);
+        if (spaceDisplayPtr->IsObjectsSizeAndIdSame(objectsIdType)) {
+            return;
+        }
         spaceDisplayPtr->CreateObjectsLegend(objectsIdType);
         spaceDisplayPtr->UpdateLegend();
     } else {
diff --git a/chart_plugin/src/slt_space_display.cpp b/chart_plugin/src/slt_space_display.cpp
index 4a4362b9ec2fa06e0eeaafc417ccd6f5d8d8df2c..28e663820f30c3c585aee2d4898def5f51954c25 100755
--- a/chart_plugin/src/slt_space_display.cpp
+++ b/chart_plugin/src/slt_space_display.cpp
@@ -528,6 +528,19 @@ void SltSpaceDisplay::UpdateDrawQMathGl() const
     ui.GetQMathGl()->refresh();
 }
 
+bool SltSpaceDisplay::IsObjectsSizeAndIdSame(const QMap<QString, int32_t> &objectsIdType) const
+{
+    if (objectsIdType.size() == objectsIdLegendMap.size()) {
+        for (auto iter = objectsIdLegendMap.begin(); iter != objectsIdLegendMap.end(); iter++) {
+            if (!objectsIdType.contains(iter->first)) {
+                return false;
+            }
+        }
+        return true;
+    }
+    return false;
+}
+
 void SltSpaceDisplay::onInitialize()
 {
     InitProperty();
diff --git a/chart_plugin/src/slt_space_display.h b/chart_plugin/src/slt_space_display.h
index 1419982866b92aabe1a658b92de0b013d59b6265..ff6d32868df8fc981865b61076056af2e43b16f7 100755
--- a/chart_plugin/src/slt_space_display.h
+++ b/chart_plugin/src/slt_space_display.h
@@ -198,6 +198,14 @@ public:
      */
     void UpdateDrawQMathGl() const;
 
+    /*
+     * 功能：是否和原来障碍物一样
+     * 输入参数：无
+     * 输出参数：无
+     * 返回值：bool
+     */
+    bool IsObjectsSizeAndIdSame(const QMap<QString, int32_t> &objectsIdType) const;
+
 public Q_SLOTS:
     /*
      * 功能：更新曲线属性控制选项为用户所选择的曲线