diff --git a/backend/app/backtest/engine.py b/backend/app/backtest/engine.py
index 06d8244..a9ad18a 100644
--- a/backend/app/backtest/engine.py
+++ b/backend/app/backtest/engine.py
@@ -101,6 +101,10 @@ class TradeRecord:
     entry_signal_date: date | str | None = None
     exit_signal_date: date | str | None = None
     blocked_exit_days: int = 0
+    # 触发买入/卖出的具体信号列名 (如 signal_ma_golden_5_20 / csg_xxx);
+    # 仅当该腿由信号触发时填充, 止损/止盈/到期等非信号退出时 exit_signal_id 为 None。
+    entry_signal_id: str | None = None
+    exit_signal_id: str | None = None
 
 
 @dataclass
@@ -112,6 +116,26 @@ class SimResult:
     stats: dict
 
 
+def _resolve_signal_id(panel: pl.DataFrame, idx: int, signal_ids: list[str] | None) -> str | None:
+    """在触发行 idx 上, 从候选信号里找出 panel 列为 True 的那个, 返回其列名。
+
+    多个信号同时为 True 时返回第一个匹配的 (信号 OR 关系, 回测只记录其一即可)。
+    signal_ids 元素可能带 signal_/csg_ 前缀, 也可能是裸名 (如 "ma_golden_5_20")。
+    """
+    if not signal_ids:
+        return None
+    for sid in signal_ids:
+        col = sid if (sid.startswith("signal_") or sid.startswith("csg_")) else f"signal_{sid}"
+        if col not in panel.columns:
+            continue
+        try:
+            if bool(panel[col][idx]):
+                return col
+        except (IndexError, TypeError):
+            continue
+    return None
+
+
 # ================================================================
 # PanelCache — 避免重复 scan_parquet + compute_all
 # ================================================================
@@ -322,6 +346,8 @@ class BacktestEngine:
         entries: pl.Series | None,
         exits: pl.Series | None,
         config: MatcherConfig,
+        entry_signal_ids: list[str] | None = None,
+        exit_signal_ids: list[str] | None = None,
     ) -> SimResult:
         """纯 NumPy 撮合模拟 — 逐 symbol 状态机。"""
         if panel.is_empty():
@@ -459,6 +485,8 @@ class BacktestEngine:
         config: MatcherConfig,
         progress_cb: "Callable[[dict], None] | None" = None,
         cancel_event: "threading.Event | None" = None,
+        entry_signal_ids: list[str] | None = None,
+        exit_signal_ids: list[str] | None = None,
     ) -> SimResult:
         """全量候选独立执行：每个买入信号都是独立样本, 不受资金/仓位限制。"""
         if panel.is_empty():
@@ -736,6 +764,8 @@ class BacktestEngine:
                 entry_signal_date=pos.get("entry_signal_date"),
                 exit_signal_date=signal_date,
                 blocked_exit_days=int(pos.get("blocked_exit_days", 0)),
+                entry_signal_id=pos.get("entry_signal_id"),
+                exit_signal_id=_resolve_signal_id(panel, idx, exit_signal_ids) if reason == "signal" else None,
             ))
             return True
 
@@ -781,6 +811,7 @@ class BacktestEngine:
                 "entry_idx": entry_idx,
                 "entry_date": self._date_str(panel_dates[entry_idx]),
                 "entry_signal_date": entry_signal_dates[entry_idx] or self._date_str(panel_dates[entry_idx]),
+                "entry_signal_id": _resolve_signal_id(panel, entry_idx, entry_signal_ids),
                 "entry_price": entry_price,
                 "entry_score": score,
                 "hold_days": 0,
@@ -955,6 +986,8 @@ class BacktestEngine:
         config: MatcherConfig,
         progress_cb: "Callable[[dict], None] | None" = None,
         cancel_event: "threading.Event | None" = None,
+        entry_signal_ids: list[str] | None = None,
+        exit_signal_ids: list[str] | None = None,
     ) -> SimResult:
         """账户级组合回测：日线信号 → 成交约束 → 仓位/现金撮合。"""
         if panel.is_empty():
@@ -1223,6 +1256,8 @@ class BacktestEngine:
                 entry_signal_date=pos.get("entry_signal_date"),
                 exit_signal_date=signal_date,
                 blocked_exit_days=int(pos.get("blocked_exit_days", 0)),
+                entry_signal_id=pos.get("entry_signal_id"),
+                exit_signal_id=_resolve_signal_id(panel, idx, exit_signal_ids) if reason == "signal" else None,
             ))
 
         def _try_sell(
@@ -1416,6 +1451,7 @@ class BacktestEngine:
                     "name": str(names[idx] or ""),
                     "entry_date": self._date_str(panel_dates[idx]),
                     "entry_signal_date": entry_signal_dates[idx] or self._date_str(panel_dates[idx]),
+                    "entry_signal_id": _resolve_signal_id(panel, idx, entry_signal_ids),
                     "entry_price": entry_price,
                     "entry_value": entry_value,
                     "shares": shares,
diff --git a/backend/app/backtest/strategy.py b/backend/app/backtest/strategy.py
index 8ad77a9..1ec1ddc 100644
--- a/backend/app/backtest/strategy.py
+++ b/backend/app/backtest/strategy.py
@@ -229,9 +229,15 @@ class StrategyBacktestService:
                 matcher_config,
                 progress_cb,
                 cancel_event,
+                entry_signal_ids=entry_signals,
+                exit_signal_ids=exit_signals,
             )
         else:
-            result = self.engine.simulate_portfolio(sim_panel, sim_entry_mask, sim_exit_mask, matcher_config, progress_cb, cancel_event)
+            result = self.engine.simulate_portfolio(
+                sim_panel, sim_entry_mask, sim_exit_mask, matcher_config,
+                progress_cb, cancel_event,
+                entry_signal_ids=entry_signals, exit_signal_ids=exit_signals,
+            )
         timing_ms["simulate"] = round((time.perf_counter() - t_sim) * 1000, 1)
 
         # 检查是否被取消
@@ -640,6 +646,8 @@ class StrategyBacktestService:
             "entry_signal_date": str(t.entry_signal_date) if getattr(t, "entry_signal_date", None) is not None else None,
             "exit_signal_date": str(t.exit_signal_date) if getattr(t, "exit_signal_date", None) is not None else None,
             "blocked_exit_days": getattr(t, "blocked_exit_days", 0),
+            "entry_signal_id": getattr(t, "entry_signal_id", None),
+            "exit_signal_id": getattr(t, "exit_signal_id", None),
         }
 
     @staticmethod
diff --git a/backend/tests/backtest/test_strategy_backtest_correctness.py b/backend/tests/backtest/test_strategy_backtest_correctness.py
index 7907d22..a788fc1 100644
--- a/backend/tests/backtest/test_strategy_backtest_correctness.py
+++ b/backend/tests/backtest/test_strategy_backtest_correctness.py
@@ -58,7 +58,7 @@ class _EngineStub:
         self.load_asset_type = asset_type
         return self.panel
 
-    def simulate_portfolio(self, panel, entries, exits, config, progress_cb=None, cancel_event=None) -> SimResult:
+    def simulate_portfolio(self, panel, entries, exits, config, progress_cb=None, cancel_event=None, entry_signal_ids=None, exit_signal_ids=None) -> SimResult:
         self.sim_panel = panel
         self.sim_entries = entries
         return SimResult(
diff --git a/frontend/src/lib/api.ts b/frontend/src/lib/api.ts
index 6b550b0..e266f94 100644
--- a/frontend/src/lib/api.ts
+++ b/frontend/src/lib/api.ts
@@ -623,6 +623,8 @@ export interface StrategyBacktestTrade {
   entry_signal_date?: string | null
   exit_signal_date?: string | null
   blocked_exit_days?: number
+  entry_signal_id?: string | null
+  exit_signal_id?: string | null
 }
 
 export interface StrategyBacktestResult {
diff --git a/frontend/src/pages/backtest/StrategyBacktest.tsx b/frontend/src/pages/backtest/StrategyBacktest.tsx
index f3dffe9..20bb944 100644
--- a/frontend/src/pages/backtest/StrategyBacktest.tsx
+++ b/frontend/src/pages/backtest/StrategyBacktest.tsx
@@ -14,6 +14,7 @@ import { storage } from '@/lib/storage'
 import { fmtPct, fmtPrice, priceColorClass } from '@/lib/format'
 import { boardTag } from '@/lib/board'
 import { BUILTIN_COLUMNS } from '@/lib/watchlist-columns'
+import { cnSignal } from '@/lib/signals'
 import { SignalPicker } from '@/components/screener/SignalPicker'
 import { startBacktest, stopBacktest, tryReconnect, useBacktestTask } from '@/lib/backtestTask'
 import { useDataStatus, useCapabilities } from '@/lib/useSharedQueries'
@@ -245,7 +246,17 @@ const statValueColor = (v: number | null | undefined) => {
   return v > 0 ? '#f87171' : '#34d399'
 }
 
-function ExitReasonBadge({ reason }: { reason: string }) {
+/** 信号 ID → 可读名称映射 (内置 + 自定义), 供交易记录显示具体触发信号。 */
+function useSignalNames(): Record<string, string> {
+  const customQ = useQuery({ queryKey: QK.customSignals, queryFn: api.customSignalsList })
+  return useMemo(() => {
+    const names: Record<string, string> = {}
+    for (const cs of customQ.data?.signals ?? []) names[`csg_${cs.id}`] = cs.name
+    return names
+  }, [customQ.data])
+}
+
+function ExitReasonBadge({ reason, signalId, signalNames }: { reason: string; signalId?: string | null; signalNames?: Record<string, string> }) {
   const config: Record<string, { label: string; cls: string }> = {
     signal: { label: '信号', cls: 'bg-accent/10 text-accent border-accent/30' },
     stop_loss: { label: '止损', cls: 'bg-red-500/10 text-red-400 border-red-500/30' },
@@ -257,8 +268,12 @@ function ExitReasonBadge({ reason }: { reason: string }) {
     end: { label: '期末', cls: 'bg-secondary/10 text-secondary border-border' },
   }
   const c = config[reason] ?? { label: reason, cls: 'bg-elevated text-muted border-border' }
+  // 信号类退出且能解析出具体信号名时, 显示具体信号而非笼统的"信号"
+  const specific = reason === 'signal' && signalId ? cnSignal(signalId, signalNames) : null
   return (
-    <span className={`text-[10px] px-1.5 py-0.5 rounded border ${c.cls}`}>{c.label}</span>
+    <span className={`text-[10px] px-1.5 py-0.5 rounded border ${c.cls} ${specific ? 'max-w-[7rem] truncate' : ''}`} title={specific ?? c.label}>
+      {specific ?? c.label}
+    </span>
   )
 }
 
@@ -282,7 +297,7 @@ function fmtScore(v: number | null | undefined): string {
   return Number(v).toFixed(1)
 }
 
-function DailyTradeChip({ trade, side, strategyName, onClick }: { trade: StrategyBacktestTrade; side: 'buy' | 'sell'; strategyName?: string; onClick?: () => void }) {
+function DailyTradeChip({ trade, side, strategyName, onClick, signalNames }: { trade: StrategyBacktestTrade; side: 'buy' | 'sell'; strategyName?: string; onClick?: () => void; signalNames?: Record<string, string> }) {
   const isBuy = side === 'buy'
   const tag = boardTag(trade.symbol)
   const price = isBuy ? trade.entry_price : trade.exit_price
@@ -317,7 +332,7 @@ function DailyTradeChip({ trade, side, strategyName, onClick }: { trade: Strateg
         ) : (
           <span className="flex shrink-0 items-center gap-1.5">
             <span className="num text-secondary">{fmtPrice(price)}</span>
-            <ExitReasonBadge reason={trade.exit_reason} />
+            <ExitReasonBadge reason={trade.exit_reason} signalId={trade.exit_signal_id} signalNames={signalNames} />
           </span>
         )}
       </span>
@@ -354,12 +369,14 @@ function DailyTradeChip({ trade, side, strategyName, onClick }: { trade: Strateg
   )
 }
 
-function TradeLegCell({ trade, side }: { trade: StrategyBacktestTrade; side: 'buy' | 'sell' }) {
+function TradeLegCell({ trade, side, signalNames }: { trade: StrategyBacktestTrade; side: 'buy' | 'sell'; signalNames?: Record<string, string> }) {
   const isBuy = side === 'buy'
   const date = String(isBuy ? trade.entry_date : trade.exit_date).slice(0, 10)
   const signalDate = String(isBuy ? trade.entry_signal_date ?? '' : trade.exit_signal_date ?? '').slice(0, 10)
   const price = isBuy ? trade.entry_price : trade.exit_price
   const amount = isBuy ? trade.entry_value : trade.exit_value
+  const signalId = isBuy ? trade.entry_signal_id : trade.exit_signal_id
+  const signalLabel = signalId ? cnSignal(signalId, signalNames) : null
 
   return (
     <div className="min-w-[8.25rem] rounded-btn border border-border/60 bg-base/35 px-2 py-1 text-xs leading-4">
@@ -375,7 +392,10 @@ function TradeLegCell({ trade, side }: { trade: StrategyBacktestTrade; side: 'bu
         <span className="num text-foreground">{fmtPrice(price)}</span>
         <span className="num font-medium text-foreground">{fmtMoney(amount)}</span>
       </div>
-      {signalDate && signalDate !== date && (
+      {signalLabel && (
+        <div className="mt-0.5 text-[10px] text-accent/80 truncate" title={signalLabel}>{signalLabel}</div>
+      )}
+      {!signalLabel && signalDate && signalDate !== date && (
         <div className="mt-0.5 text-[10px] text-muted">信号 {signalDate}</div>
       )}
     </div>
@@ -706,6 +726,7 @@ function StockPoolPicker({ value, onChange, assetType = 'stock' }: { value: stri
 }
 
 export function StrategyBacktest() {
+  const signalNames = useSignalNames()
   const [saved] = useState(() => storage.strategyBacktestLast.get(null))
   const [selectedStrategy, setSelectedStrategy] = useState<string | null>(saved?.selectedStrategy ?? null)
   const [strategyGroup, setStrategyGroup] = useState<StrategyGroup>('all')
@@ -1751,7 +1772,7 @@ export function StrategyBacktest() {
                               ) : (
                                 <div className="flex flex-wrap gap-1.5">
                                   {row.buys.map((t, i) => (
-                                    <DailyTradeChip key={`buy-${t.symbol}-${t.entry_date}-${t.exit_date}-${i}`} trade={t} side="buy" strategyName={result?.strategy_info?.name ?? selectedStrategyName} onClick={() => setSelectedTrade(t)} />
+                                    <DailyTradeChip key={`buy-${t.symbol}-${t.entry_date}-${t.exit_date}-${i}`} trade={t} side="buy" strategyName={result?.strategy_info?.name ?? selectedStrategyName} onClick={() => setSelectedTrade(t)} signalNames={signalNames} />
                                   ))}
                                 </div>
                               )}
@@ -1762,7 +1783,7 @@ export function StrategyBacktest() {
                               ) : (
                                 <div className="flex flex-wrap gap-1.5">
                                   {row.sells.map((t, i) => (
-                                    <DailyTradeChip key={`sell-${t.symbol}-${t.entry_date}-${t.exit_date}-${i}`} trade={t} side="sell" onClick={() => setSelectedTrade(t)} />
+                                    <DailyTradeChip key={`sell-${t.symbol}-${t.entry_date}-${t.exit_date}-${i}`} trade={t} side="sell" onClick={() => setSelectedTrade(t)} signalNames={signalNames} />
                                   ))}
                                 </div>
                               )}
@@ -1833,10 +1854,10 @@ export function StrategyBacktest() {
                               <div className="mt-0.5 font-mono text-[11px] text-muted">{t.symbol}</div>
                             </td>
                             <td className="px-4 py-2.5">
-                              <TradeLegCell trade={t} side="buy" />
+                              <TradeLegCell trade={t} side="buy" signalNames={signalNames} />
                             </td>
                             <td className="px-4 py-2.5">
-                              <TradeLegCell trade={t} side="sell" />
+                              <TradeLegCell trade={t} side="sell" signalNames={signalNames} />
                             </td>
                             <td className="px-4 py-2.5 text-right">
                               <div className="num text-foreground">{fmtPct(t.position_pct, 2)}</div>
@@ -1853,7 +1874,7 @@ export function StrategyBacktest() {
                               <div>{t.duration} 天</div>
                               {!!t.blocked_exit_days && <div className="mt-0.5 text-[11px] text-amber-400">阻塞 {t.blocked_exit_days} 天</div>}
                             </td>
-                            <td className="px-4 py-2.5"><ExitReasonBadge reason={t.exit_reason} /></td>
+                            <td className="px-4 py-2.5"><ExitReasonBadge reason={t.exit_reason} signalId={t.exit_signal_id} signalNames={signalNames} /></td>
                           </tr>
                         ))}
                       </tbody>