diff --git a/backend/live_executor.py b/backend/live_executor.py
index 42db7f1..f57c5d0 100644
--- a/backend/live_executor.py
+++ b/backend/live_executor.py
@@ -11,6 +11,11 @@ Live Executor - 实盘交易执行模块
 
 import os
 import sys
+from pathlib import Path
+try:
+    from dotenv import load_dotenv; load_dotenv(Path(__file__).parent / ".env")
+except ImportError:
+    pass
 import json
 import time
 import logging
diff --git a/backend/position_sync.py b/backend/position_sync.py
index 675a942..aa68dc3 100644
--- a/backend/position_sync.py
+++ b/backend/position_sync.py
@@ -10,6 +10,11 @@ Position Sync - 仓位同步与对账模块
 import os
 import sys
 import json
+from pathlib import Path
+try:
+    from dotenv import load_dotenv; load_dotenv(Path(__file__).parent / ".env")
+except ImportError:
+    pass
 import time
 import logging
 import asyncio
diff --git a/backend/risk_guard.py b/backend/risk_guard.py
index 8263f2b..9d21a79 100644
--- a/backend/risk_guard.py
+++ b/backend/risk_guard.py
@@ -15,6 +15,11 @@ import os
 import sys
 import json
 import time
+from pathlib import Path
+try:
+    from dotenv import load_dotenv; load_dotenv(Path(__file__).parent / ".env")
+except ImportError:
+    pass
 import logging
 import asyncio
 import hashlib