diff --git a/okx-auto-position/scripts/process_signal.py b/okx-auto-position/scripts/process_signal.py
index 77d781f..17f586a 100644
--- a/okx-auto-position/scripts/process_signal.py
+++ b/okx-auto-position/scripts/process_signal.py
@@ -241,16 +241,6 @@ def format_message(fields, rec, signal_type):
     if 'error' in rec:
         return f"⚠️ advisor错误: {rec['error']}"
 
-    symbol = fields.get('symbol', '?')
-    side_cn = fields.get('side', '做多')
-    side_en = fields.get('side_en', 'long' if side_cn == '做多' else 'short')
-    trader = fields.get('trader', '?')
-
-    # 锁检查: 同币种只跟一个 trader
-    allowed, lock_msg = check_signal_lock(symbol, trader, side_en)
-    if not allowed:
-        return f"🔒 {lock_msg}"
-
     def _fmt(x, n=4):
         """格式化数字: 字符串保留原样, 数字 round 到 n 位."""
         try:
@@ -258,8 +248,11 @@ def format_message(fields, rec, signal_type):
         except (ValueError, TypeError):
             return str(x)
 
+    symbol = fields.get('symbol', '?')
+    side_cn = fields.get('side', '做多')
     emoji = '🟩' if fields.get('side_en') == 'long' else '🟥'
     leverage = fields.get('leverage', '10')
+    trader = fields.get('trader', '?')
     size = fields.get('size', '?')
     unit = fields.get('unit', '')  # 仓位单位: BTC/USDT/张
     value = fields.get('value', '?')
@@ -760,6 +753,11 @@ def process_signal(text):
     rr = cc.get('rr_ratio', rec.get('rr', 0))
     profit = cc.get('profit_amount', rec.get('tp_pnl', 0))
     fee_pct = cc.get('fee_pct', 0)
+    # 锁检查: 同币种只跟一个 trader (在 execute 之前检查)
+    side_en = 'long' if 'long' in str(side).lower() or side == '做多' else 'short'
+    allowed, lock_msg = check_signal_lock(symbol, trader, side_en)
+    if not allowed:
+        return f"🔒 {lock_msg}"
     # 用户要求：所有信号自动执行，只有余额不足才跳过
     auto_execute = rec.get('contracts', 0) > 0  # 有可开张数=自动执行