diff --git a/src/editor/dtextedit.cpp b/src/editor/dtextedit.cpp
index 6a70ba0c..6c65701c 100644
--- a/src/editor/dtextedit.cpp
+++ b/src/editor/dtextedit.cpp
@@ -68,7 +68,7 @@ TextEdit::TextEdit(QWidget *parent)
 {
     setUndoRedoEnabled(false);
     //撤销重做栈
-    m_pUndoStack = new QUndoStack(this);
+    m_pUndoStack = new QUndoStack();
 
     m_nLines = 0;
     m_nBookMarkHoverLine = -1;
@@ -172,6 +172,10 @@ TextEdit::~TextEdit()
         delete m_rightMenu;
         m_rightMenu = nullptr;
     }
+
+    if (m_pUndoStack != nullptr) {
+        m_pUndoStack->deleteLater();
+    }
 }
 
 void TextEdit::insertTextEx(QTextCursor cursor, QString text)