diff --git a/src/config.py b/src/config.py
index e90ddf8..9d59143 100644
--- a/src/config.py
+++ b/src/config.py
@@ -22,6 +22,9 @@ class Config:
     LOG_MAX_BYTES = 10 * 1024 * 1024  # 10MB
     LOG_BACKUP_COUNT = 5
 
+    # strategy data
+    DATA_DIR = "../data"
+
     # API Rate limiting
     RATE_LIMIT_REQUESTS = 100
     RATE_LIMIT_PERIOD = 60  # seconds
diff --git a/src/position_manager.py b/src/position_manager.py
index 0e1c2b5..8a50601 100644
--- a/src/position_manager.py
+++ b/src/position_manager.py
@@ -1,6 +1,7 @@
 import os
 import json
 from logger_config import get_logger
+from config import Config
 from trade_constants import (
     ORDER_DIRECTION_BUY,
     ORDER_TYPE_LIMIT,
@@ -29,7 +30,7 @@ class PositionManager:
         self.positions: Dict[str, LocalPosition] = {}  #  {股票代码 -> LocalPosition}
         # 待处理订单信息
         self.pending_orders = {}  # {order_id -> LocalOrder}
-        self.data_path = self.strategy_name + "_positions.json"
+        self.data_path = os.path.join(Config.DATA_DIR, self.strategy_name + "_positions.json")
         self.load_data()
 
     def update_position(self, code, direction, amount):