diff --git a/app/src/core/stage/stageManager/concreteMethods/StageSectionInOutManager.tsx b/app/src/core/stage/stageManager/concreteMethods/StageSectionInOutManager.tsx
index 3d3fcadb..10df8f65 100644
--- a/app/src/core/stage/stageManager/concreteMethods/StageSectionInOutManager.tsx
+++ b/app/src/core/stage/stageManager/concreteMethods/StageSectionInOutManager.tsx
@@ -90,6 +90,11 @@ export class SectionInOutManager {
     // 获取section的父级section
     const fatherSections = this.project.sectionMethods.getFatherSections(section);
 
+    // 先从父 section 的 children 中移除旧的 section 引用（直接操作数组，避免触发 sectionDropChild 的连锁反应）
+    for (const fatherSection of fatherSections) {
+      fatherSection.children = fatherSection.children.filter((child) => child.uuid !== section.uuid);
+    }
+
     // 创建新的TextNode，保持UUID不变
     const textNode = new TextNode(this.project, {
       uuid: section.uuid, // 保持UUID不变
diff --git a/app/src/core/stage/stageObject/entity/Section.tsx b/app/src/core/stage/stageObject/entity/Section.tsx
index 64b554cd..9f944bdc 100644
--- a/app/src/core/stage/stageObject/entity/Section.tsx
+++ b/app/src/core/stage/stageObject/entity/Section.tsx
@@ -228,6 +228,10 @@ export class Section extends ConnectableEntity {
     }
     // 让内部元素也移动
     for (const child of this.children) {
+      // 跳过已被选中的子元素，避免重复移动（解决速度叠加bug）
+      if (child.isSelected) {
+        continue;
+      }
       child.move(delta);
     }