diff --git a/src/budget/_account.py b/src/budget/_account.py
index b3737cb..abf3930 100644
--- a/src/budget/_account.py
+++ b/src/budget/_account.py
@@ -38,42 +38,6 @@ class AccountTab(TabPage):
 
         self.setLayout(accountLayout)
 
-    def onAccountDeleteClicked(self):
-
-        # 新建对话框，询问是否删除
-        dialog = QDialog(self)
-        dialog.setWindowTitle('Delete Account')
-
-        label1 = QLabel("Are you sure to delete this account?")
-        label2 = QLabel("This action cannot be undone.")
-
-        buttonBox = QDialogButtonBox(QDialogButtonBox.StandardButton.Ok | QDialogButtonBox.StandardButton.Cancel)
-        buttonBox.accepted.connect(dialog.accept)
-        buttonBox.rejected.connect(dialog.reject)
-
-        layout = QVBoxLayout()
-        layout.addWidget(label1)
-        layout.addWidget(label2)
-        layout.addWidget(buttonBox)
-        layout.setSpacing(12)
-        layout.setContentsMargins(15, 15, 15, 15)
-        dialog.setMinimumWidth(400)
-        dialog.setLayout(layout)
-
-        # 若确认删除，则执行删除操作
-        if dialog.exec() == QDialog.DialogCode.Accepted:
-            index = self.accountComboBox.currentIndex()
-            if (index == -1):
-                QMessageBox.critical(self, 'Error', 'No account selected')
-                return
-            a_id = self.rows[index][0]
-            self.pg.execute("DELETE FROM account WHERE a_id=%s", (a_id,))
-            self.selected()
-            QMessageBox.information(self, 'Success', 'Account deleted')
-            # 关闭原来的对话框
-            self.aDialog.close()
-        
-
 
     def onAccountModifyClicked(self):
         # 创建添加数据对话框
@@ -113,16 +77,13 @@ class AccountTab(TabPage):
         # descriptionLine.setText(self.transData[self.rows[0].row()][6])
 
         button1 = QPushButton("Confirm")
-        button3 = QPushButton("Delete")
         button2 = QPushButton("Abort")
 
         buttonLayout = QHBoxLayout()
         buttonLayout.addWidget(button1)
-        buttonLayout.addWidget(button3)
         buttonLayout.addWidget(button2)
 
         button1.clicked.connect(self.aDialog.accept)
-        button3.clicked.connect(self.onAccountDeleteClicked)
         button2.clicked.connect(self.aDialog.reject)
 
         layout = QFormLayout()
diff --git a/src/budget/_category.py b/src/budget/_category.py
index 0eb4818..19c48c6 100644
--- a/src/budget/_category.py
+++ b/src/budget/_category.py
@@ -42,9 +42,6 @@ class CategoryTab(TabPage):
         self.setLayout(categoryLayout)
 
 
-    def onCategoryDeleteClicked(self):
-        pass
-
     def onCategoryModifyClicked(self):
         # 创建添加数据对话框
         self.cDialog = QDialog(self)
@@ -83,15 +80,12 @@ class CategoryTab(TabPage):
         line3.setText(data[0][2])
         
         button1 = QPushButton("Confirm")
-        button3 = QPushButton("Delete")
         button2 = QPushButton("Abort")
         buttonLayout = QHBoxLayout()
         buttonLayout.addWidget(button1)
-        buttonLayout.addWidget(button3)
         buttonLayout.addWidget(button2)
 
         button1.clicked.connect(self.cDialog.accept)
-        button3.clicked.connect(self.onCategoryDeleteClicked)
         button2.clicked.connect(self.cDialog.reject)
 
         layout = QFormLayout()