diff --git a/backend/api/routes/account.py b/backend/api/routes/account.py
index d415885..cf28239 100644
--- a/backend/api/routes/account.py
+++ b/backend/api/routes/account.py
@@ -1764,8 +1764,13 @@ async def sync_positions(
             recovered_count = 0
             system_order_prefix = ""
             try:
-                from database.models import TradingConfig
-                system_order_prefix = (TradingConfig.get_value("SYSTEM_ORDER_ID_PREFIX", "", account_id=account_id) or "").strip()
+                from database.models import TradingConfig, GlobalStrategyConfig
+                system_order_prefix = (
+                    TradingConfig.get_value("SYSTEM_ORDER_ID_PREFIX", None, account_id=account_id)
+                    or GlobalStrategyConfig.get_value("SYSTEM_ORDER_ID_PREFIX", "")
+                    or ""
+                )
+                system_order_prefix = (system_order_prefix or "").strip()
             except Exception:
                 pass
             if missing_in_db:
diff --git a/backend/api/routes/config.py b/backend/api/routes/config.py
index 2c3990c..898dca4 100644
--- a/backend/api/routes/config.py
+++ b/backend/api/routes/config.py
@@ -40,10 +40,6 @@ USER_RISK_KNOBS = {
     "AUTO_TRADE_ENABLED",   # 总开关：关闭则只生成推荐不自动下单
     "MAX_OPEN_POSITIONS",   # 同时持仓数量上限
     "MAX_DAILY_ENTRIES",    # 每日最多开仓次数
-    # 同步/系统单标识（仓位控制）
-    "SYNC_RECOVER_MISSING_POSITIONS",
-    "SYNC_RECOVER_ONLY_WHEN_HAS_SLTP",
-    "SYSTEM_ORDER_ID_PREFIX",
     # 策略筛选（允许用户调整）
     "TOP_N_SYMBOLS",
     "MIN_SIGNAL_STRENGTH",
@@ -64,9 +60,6 @@ USER_VISIBLE_DEFAULTS = {
     "MAX_TOTAL_POSITION_PERCENT": {"value": 20.0, "type": "number", "category": "position", "description": "总仓位最大保证金占比（%）"},
     "AUTO_TRADE_ENABLED": {"value": True, "type": "boolean", "category": "risk", "description": "自动交易总开关：关闭后仅生成推荐，不会自动下单"},
     "MAX_OPEN_POSITIONS": {"value": 3, "type": "number", "category": "position", "description": "同时持仓数量上限"},
-    "SYNC_RECOVER_MISSING_POSITIONS": {"value": True, "type": "boolean", "category": "position", "description": "同步时补建「币安有仓、DB 无记录」的交易记录（便于订单记录与统计）"},
-    "SYNC_RECOVER_ONLY_WHEN_HAS_SLTP": {"value": True, "type": "boolean", "category": "position", "description": "仅当该持仓存在止损/止盈单时才补建（未配置 SYSTEM_ORDER_ID_PREFIX 时生效）"},
-    "SYSTEM_ORDER_ID_PREFIX": {"value": "SYS", "type": "string", "category": "position", "description": "系统单标识：下单时写入 newClientOrderId 前缀，同步时仅对「开仓订单 clientOrderId 以此前缀开头」的持仓补建；设空则用「是否有止损止盈单」判断"},
     "MAX_DAILY_ENTRIES": {"value": 8, "type": "number", "category": "risk", "description": "每日最多开仓次数"},
     "TOP_N_SYMBOLS": {"value": 8, "type": "number", "category": "scan", "description": "每次扫描后优先处理的交易对数量"},
     "MIN_SIGNAL_STRENGTH": {"value": 8, "type": "number", "category": "scan", "description": "最小信号强度（0-10）"},
@@ -492,6 +485,24 @@ async def get_global_configs(
                 "category": "strategy",
                 "description": "是否启用移动止损（默认关闭，让利润奔跑）",
             },
+            "SYNC_RECOVER_MISSING_POSITIONS": {
+                "value": True,
+                "type": "boolean",
+                "category": "position",
+                "description": "同步时补建「币安有仓、DB 无记录」的交易记录（便于订单记录与统计）",
+            },
+            "SYNC_RECOVER_ONLY_WHEN_HAS_SLTP": {
+                "value": True,
+                "type": "boolean",
+                "category": "position",
+                "description": "仅当该持仓存在止损/止盈单时才补建（未配置 SYSTEM_ORDER_ID_PREFIX 时生效）",
+            },
+            "SYSTEM_ORDER_ID_PREFIX": {
+                "value": "SYS",
+                "type": "string",
+                "category": "position",
+                "description": "系统单标识：下单时写入 newClientOrderId 前缀，同步时仅对「开仓订单 clientOrderId 以此前缀开头」的持仓补建；设空则用「是否有止损止盈单」判断",
+            },
             "SMART_ENTRY_ENABLED": {
                 "value": False,
                 "type": "boolean",
diff --git a/backend/config_manager.py b/backend/config_manager.py
index a2c9f74..f948bcf 100644
--- a/backend/config_manager.py
+++ b/backend/config_manager.py
@@ -825,6 +825,11 @@ class ConfigManager:
             'AUTO_TRADE_ENABLED': eff_get('AUTO_TRADE_ENABLED', True),
             'MAX_OPEN_POSITIONS': eff_get('MAX_OPEN_POSITIONS', 3),
             'MAX_DAILY_ENTRIES': eff_get('MAX_DAILY_ENTRIES', max_daily_default),
+
+            # 同步/系统单标识（全局配置，账号可覆盖）
+            'SYNC_RECOVER_MISSING_POSITIONS': eff_get('SYNC_RECOVER_MISSING_POSITIONS', True),
+            'SYNC_RECOVER_ONLY_WHEN_HAS_SLTP': eff_get('SYNC_RECOVER_ONLY_WHEN_HAS_SLTP', True),
+            'SYSTEM_ORDER_ID_PREFIX': eff_get('SYSTEM_ORDER_ID_PREFIX', 'SYS') or '',
             
             # 涨跌幅阈值
             'MIN_CHANGE_PERCENT': eff_get('MIN_CHANGE_PERCENT', 2.0),
diff --git a/frontend/src/components/ConfigPanel.jsx b/frontend/src/components/ConfigPanel.jsx
index cd83b04..54c8824 100644
--- a/frontend/src/components/ConfigPanel.jsx
+++ b/frontend/src/components/ConfigPanel.jsx
@@ -46,7 +46,6 @@ const ConfigPanel = () => {
   const USER_RISK_KNOBS_SET = new Set([
     'MIN_MARGIN_USDT', 'MIN_POSITION_PERCENT', 'MAX_POSITION_PERCENT', 'MAX_TOTAL_POSITION_PERCENT',
     'AUTO_TRADE_ENABLED', 'MAX_OPEN_POSITIONS', 'MAX_DAILY_ENTRIES',
-    'SYNC_RECOVER_MISSING_POSITIONS', 'SYNC_RECOVER_ONLY_WHEN_HAS_SLTP', 'SYSTEM_ORDER_ID_PREFIX',
     'TOP_N_SYMBOLS', 'MIN_SIGNAL_STRENGTH', 'MIN_VOLUME_24H', 'MIN_VOLATILITY',
     'SCAN_EXTRA_SYMBOLS_FOR_SUPPLEMENT', 'EXCLUDE_MAJOR_COINS', 'MAX_SCAN_SYMBOLS', 'SCAN_INTERVAL',
   ])
diff --git a/frontend/src/components/GlobalConfig.jsx b/frontend/src/components/GlobalConfig.jsx
index 9899def..cf511bd 100644
--- a/frontend/src/components/GlobalConfig.jsx
+++ b/frontend/src/components/GlobalConfig.jsx
@@ -32,6 +32,9 @@ const KEY_LABELS = {
   MIN_RR_FOR_TP1: '第一目标最小盈亏比(相对止损)',
   AUTO_TRADE_ALLOW_4H_NEUTRAL: '允许 4H 中性时自动交易',
   POSITION_SCALE_FACTOR: '仓位放大系数',
+  SYNC_RECOVER_MISSING_POSITIONS: '同步时补建缺失持仓',
+  SYNC_RECOVER_ONLY_WHEN_HAS_SLTP: '仅当有止损/止盈单时补建',
+  SYSTEM_ORDER_ID_PREFIX: '系统单 clientOrderId 前缀',
 }
 
 const ConfigItem = ({ label, config, onUpdate, disabled }) => {