diff --git a/frontend/src/components/server/TerminalDialog.tsx b/frontend/src/components/server/TerminalDialog.tsx
index e1f3d59..87ef4bb 100644
--- a/frontend/src/components/server/TerminalDialog.tsx
+++ b/frontend/src/components/server/TerminalDialog.tsx
@@ -61,6 +61,15 @@ export function TerminalDialog({
   const [assigning, setAssigning] = useState(false);
   const [authReady, setAuthReady] = useState(hasAuth); // 认证就绪标志
 
+  const sendTerminalInput = (data: string) => {
+    const ws = wsRef.current;
+    if (ws?.readyState === WebSocket.OPEN) {
+      ws.send(JSON.stringify({ status: 0, data }));
+      return true;
+    }
+    return false;
+  };
+
   // 加载凭据列表
   useEffect(() => {
     if (!open || hasAuth) return;
@@ -123,11 +132,9 @@ export function TerminalDialog({
     const ws = new WebSocket(wsUrl);
     wsRef.current = ws;
 
-    term.onData((data) => {
-      if (ws.readyState === WebSocket.OPEN) {
-        ws.send(JSON.stringify({ status: 0, data }));
-      }
-    });
+    // Escape 由 Dialog 捕获后直接转发，xterm 跳过同一次事件以免重复发送。 // Logan.Li
+    term.attachCustomKeyEventHandler((event) => event.key !== "Escape");
+    term.onData(sendTerminalInput);
 
     ws.onmessage = (event) => {
       try {
@@ -214,8 +221,11 @@ export function TerminalDialog({
     <Dialog open={open} onOpenChange={onOpenChange}>
       <DialogContent
         showCloseButton={false}
-        // 禁用 Radix Dialog 默认的 ESC 关闭：终端内 vi/top 等会用到 ESC，关闭只能点头部 X 按钮 // Logan.Li
-        onEscapeKeyDown={(e) => e.preventDefault()}
+        // Radix 在捕获阶段收到 Escape，阻止关窗并把控制字符送给远端 Vim。 // Logan.Li
+        onEscapeKeyDown={(event) => {
+          event.preventDefault();
+          sendTerminalInput("\x1b");
+        }}
         className={cn(
           "min-w-0 overflow-hidden bg-[var(--dg-bg-secondary)] border-[var(--dg-border)] p-0 gap-0",
           // 禁用 CSS 过渡：终端窗口应该即时缩放，不需要动画