diff --git a/backend/api/routes/account.py b/backend/api/routes/account.py
index 65979eb..0b18b00 100644
--- a/backend/api/routes/account.py
+++ b/backend/api/routes/account.py
@@ -766,7 +766,8 @@ async def fetch_realtime_positions(account_id: int):
                     if matched is None:
                         matched = db_trades[0]
                     entry_time = matched.get('entry_time')
-                    created_at = matched.get('created_at')  # 创建时间，无 entry_time 时用于展示开仓时间
+                    # 创建时间：兼容 DB 列名 created_at / create_at
+                    created_at = matched.get('created_at') if matched.get('created_at') is not None else matched.get('create_at')
                     stop_loss_price = matched.get('stop_loss_price')
                     take_profit_price = matched.get('take_profit_price')
                     take_profit_1 = matched.get('take_profit_1')
diff --git a/frontend/src/components/StatsDashboard.jsx b/frontend/src/components/StatsDashboard.jsx
index d96efce..8f84a6c 100644
--- a/frontend/src/components/StatsDashboard.jsx
+++ b/frontend/src/components/StatsDashboard.jsx
@@ -742,7 +742,7 @@ const StatsDashboard = () => {
                         开仓时间: {(trade.entry_time || trade.created_at) ? formatEntryTime(trade.entry_time || trade.created_at) : '—'}
                       </div>
                       <div className="entry-time">
-                        创建时间: {trade.created_at ? formatEntryTime(trade.created_at) : '—'}
+                        创建时间: {(trade.created_at != null && trade.created_at !== '') ? formatEntryTime(trade.created_at) : '—'}
                       </div>
                     </div>
                     <div className="trade-protection-col">