diff --git a/src/budget/_account.py b/src/budget/_account.py
index dbd128f..60d46ae 100644
--- a/src/budget/_account.py
+++ b/src/budget/_account.py
@@ -94,6 +94,8 @@ class AccountTab(TabPage):
         data = self.pg.fetchall()
         print(data)
 
+        oldBalance = float(data[0][1])
+
         # 绘制界面并填充数据
         accountNameLabel = QLabel("Account Name:")
         accountNameLine = QLineEdit()
@@ -150,6 +152,14 @@ class AccountTab(TabPage):
                 
                 self.pg.execute("UPDATE account SET meta=%s WHERE a_id=%s", (data, a_id))
 
+                if oldBalance != balance:
+                    # 修改账户时，在transaction表中添加一条记录
+                    data = {"type":"modify", "description": "Account Modify"}
+                    data = json.dumps(data)
+                    self.pg.execute(
+                        "INSERT INTO transaction (a_id, time, amount, meta) VALUES (%s, now(), %s,%s)", (a_id, balance - oldBalance, data,))
+
+
                 # 刷新表格
                 self.selected()