diff --git a/app.py b/app.py
index 560b9db..09dd15e 100644
--- a/app.py
+++ b/app.py
@@ -6547,6 +6547,9 @@ def add_key():
     if not symbol:
         flash("symbol 不能为空")
         return redirect("/key_monitor")
+    if symbol not in ("BTC/USDT", "ETH/USDT"):
+        flash("关键位仅支持 BTC/USDT、ETH/USDT(对应期权标的)")
+        return redirect("/key_monitor")
     ok_sym, sym_msg = check_symbol_policy(
         TRADE_POLICY, symbol, normalize_symbol_input
     )
diff --git a/lib/instance/templates/key_monitor_panel.html b/lib/instance/templates/key_monitor_panel.html
index 0668bd8..83bd8f9 100644
--- a/lib/instance/templates/key_monitor_panel.html
+++ b/lib/instance/templates/key_monitor_panel.html
@@ -140,8 +140,10 @@
         {% endif %}
     </div>
     <form id="key-form" action="/add_key" method="post" class="form-row">
-        {% from 'trade_policy_fields.html' import trade_policy_symbol with context %}
-        {{ trade_policy_symbol('symbol', 'key-symbol') }}
+        <select name="symbol" id="key-symbol" required class="trade-policy-symbol-select" title="仅 BTC/ETH，与期权标的一致">
+            <option value="ETH/USDT" selected>ETH/USDT</option>
+            <option value="BTC/USDT">BTC/USDT</option>
+        </select>
         <select name="type" id="key-type-select" required>
             <option value="关键支撑阻力" selected>关键支撑阻力</option>
         </select>