diff --git a/frontend/paper-trading.html b/frontend/paper-trading.html
index aabf8fa..ece0e9e 100644
--- a/frontend/paper-trading.html
+++ b/frontend/paper-trading.html
@@ -1607,7 +1607,12 @@
                         });
                         const data = await response.json();
                         if (data.success) {
-                            alert(`平仓成功！盈亏: ${data.result.pnl_percent.toFixed(2)}%`);
+                            // 区分平仓和取消挂单
+                            if (data.result.pnl_percent !== undefined) {
+                                alert(`平仓成功！盈亏: ${data.result.pnl_percent.toFixed(2)}%`);
+                            } else {
+                                alert('挂单已取消');
+                            }
                             this.refreshData();
                         } else {
                             alert('平仓失败: ' + (data.detail || '未知错误'));