diff --git a/backend/app/strategy/engine.py b/backend/app/strategy/engine.py
index 2c28ae7..3082133 100644
--- a/backend/app/strategy/engine.py
+++ b/backend/app/strategy/engine.py
@@ -12,6 +12,7 @@ import sys
 import threading
 import time
 from collections.abc import Callable, Mapping
+from concurrent.futures import ThreadPoolExecutor
 from dataclasses import dataclass, field, replace
 from datetime import date
 from pathlib import Path
@@ -20,6 +21,7 @@ from typing import Any
 import numpy as np
 import polars as pl
 
+from app.config import settings
 from app.strategy.scoring import (
     SCORING_DIRECTION_LOW,
     effective_scoring,
@@ -1119,8 +1121,15 @@ class StrategyEngine:
         overrides_map: dict | None = None,
         *,
         strategy_ids: list[str] | None = None,
+        parallel: bool = True,
     ) -> dict[str, StrategyResult]:
-        """批量执行策略；当前数据、历史和矩阵均来自同一个调用上下文。"""
+        """批量执行策略；当前数据、历史和矩阵均来自同一个调用上下文。
+
+        parallel=True 时用有界线程池并发执行: 策略对 context 是只读纯函数
+        (polars 计算释放 GIL), 并发不改变结果, 逐策略耗时日志不变。composite
+        子策略的递归 run_all 以 parallel=False 调用, 保证嵌套时线程总数仍
+        不超过 worker 上限, 不随叠加层数放大。
+        """
         if context.current is None:
             raise ValueError("strategy run_all context requires current data")
         df = context.current
@@ -1164,15 +1173,22 @@ class StrategyEngine:
                         params_map.get(sid),
                     )
                 )
+            matrix_t0 = time.perf_counter()
             shared_matrix = build_market_data_matrix(
                 shared_history,
                 field_columns=field_columns,
             )
+            logger.info(
+                "run_all: shared matrix built in %.0fms (fields=%d)",
+                (time.perf_counter() - matrix_t0) * 1000,
+                len(field_columns),
+            )
 
         results: dict[str, StrategyResult] = {}
 
-        for sid, _ in selected:
-            results[sid] = self.run(
+        def _execute(sid: str) -> tuple[str, StrategyResult]:
+            started = time.perf_counter()
+            result = self.run(
                 sid,
                 replace(
                     context,
@@ -1183,6 +1199,31 @@ class StrategyEngine:
                 params=params_map.get(sid),
                 overrides=overrides_map.get(sid),
             )
+            elapsed_ms = (time.perf_counter() - started) * 1000
+            # >=1s 打 INFO 供热点归因 (哪些策略吃掉了 run_all 的大头), 其余 DEBUG 防噪。
+            log_fn = logger.info if elapsed_ms >= 1000 else logger.debug
+            log_fn(
+                "run_all: strategy %s took %.0fms (total=%d)",
+                sid,
+                elapsed_ms,
+                result.total,
+            )
+            return sid, result
+
+        workers = min(settings.strategy_run_all_workers, len(selected))
+        if parallel and workers > 1:
+            with ThreadPoolExecutor(
+                max_workers=workers, thread_name_prefix="strategy-run"
+            ) as pool:
+                futures = [pool.submit(_execute, sid) for sid, _ in selected]
+                # 按原顺序收集: 首个失败策略的异常语义与串行执行一致。
+                for future in futures:
+                    sid, result = future.result()
+                    results[sid] = result
+        else:
+            for sid, _ in selected:
+                sid, result = _execute(sid)
+                results[sid] = result
 
         return results
 
@@ -1420,6 +1461,9 @@ class StrategyEngine:
             params_map={},
             overrides_map=overrides_map,
             strategy_ids=child_ids,
+            # 嵌套调用串行: 父级 worker 已并发, 子级再开池会使线程总数随叠加
+            # 层数放大 (4×4×...), 超出并发闸与核数的合理范围。
+            parallel=False,
         )
         ordered_results = [child_results[cid] for cid in child_ids]
 
diff --git a/backend/tests/test_strategy_run_all_parallel.py b/backend/tests/test_strategy_run_all_parallel.py
new file mode 100644
index 0000000..e6e10ec
--- /dev/null
+++ b/backend/tests/test_strategy_run_all_parallel.py
@@ -0,0 +1,112 @@
+"""run_all 并行执行的等价性回归测试。
+
+engine.run_all 支持有界线程池并发 (策略对共享 context 只读纯函数)。此处验证:
+- parallel=True 与 parallel=False 对同一批策略产出完全一致的结果 (总数 + 标的集);
+- 失败策略的异常语义一致 (原顺序首个失败抛出);
+- composite 子策略的嵌套 run_all 不受影响 (递归恒串行)。
+"""
+from __future__ import annotations
+
+from datetime import date
+from pathlib import Path
+
+import polars as pl
+import pytest
+
+from app.strategy.engine import StrategyDataContext, StrategyEngine
+
+_FILTER_TEMPLATE = '''
+import polars as pl
+
+META = {{
+    "id": "{sid}",
+    "name": "{sid}",
+    "timeframes": ["1d"],
+    "asset_types": ["stock"],
+}}
+def filter(df, params):
+    return pl.col("close") > {threshold}
+'''
+
+
+def _write_strategy(directory: Path, code: str) -> None:
+    directory.mkdir(parents=True, exist_ok=True)
+    (directory / f"strategy_{abs(hash(code)) % 10**8}.py").write_text(code, encoding="utf-8")
+
+
+def _make_engine(tmp_path: Path) -> StrategyEngine:
+    d = tmp_path / "strategies"
+    _write_strategy(d, _FILTER_TEMPLATE.format(sid="cheap_a", threshold=10.0))
+    _write_strategy(d, _FILTER_TEMPLATE.format(sid="cheap_b", threshold=15.0))
+    _write_strategy(d, _FILTER_TEMPLATE.format(sid="cheap_c", threshold=20.0))
+    return StrategyEngine(strategy_dirs=[d])
+
+
+def _context() -> StrategyDataContext:
+    n = 30
+    current = pl.DataFrame({
+        "symbol": [f"{i:06d}.SZ" for i in range(n)],
+        "name": [f"股票{i}" for i in range(n)],
+        "open": [5.0 + i for i in range(n)],
+        "high": [5.5 + i for i in range(n)],
+        "low": [4.5 + i for i in range(n)],
+        "close": [5.0 + i for i in range(n)],
+        "volume": [1000.0 * (i + 1) for i in range(n)],
+        "amount": [5000.0 * (i + 1) for i in range(n)],
+        "turnover_rate": [1.0 + i * 0.1 for i in range(n)],
+        "total_shares": [1e8 for _ in range(n)],
+        "float_shares": [5e7 for _ in range(n)],
+    })
+    return StrategyDataContext(
+        asset_type="stock",
+        timeframe="1d",
+        as_of=date(2026, 9, 7),
+        current=current,
+    )
+
+
+def _signature(results: dict) -> dict:
+    return {
+        sid: (r.total, tuple(sorted(row["symbol"] for row in r.rows)))
+        for sid, r in results.items()
+    }
+
+
+def test_parallel_run_all_matches_sequential_results(tmp_path: Path) -> None:
+    engine = _make_engine(tmp_path)
+    context = _context()
+    # 关闭默认基础过滤, 让结果只取决于策略谓词本身
+    overrides = {
+        meta["id"]: {"basic_filter": {"enabled": False}}
+        for meta in engine.list_strategies()
+    }
+
+    sequential = engine.run_all(context, overrides_map=overrides, parallel=False)
+    parallel = engine.run_all(context, overrides_map=overrides, parallel=True)
+
+    assert list(parallel) == list(sequential)  # 结果键序一致
+    assert _signature(parallel) == _signature(sequential)
+    # close 序列 5..34: >10 → 11..34 共 24 只; >15 → 19 只; >20 → 14 只
+    assert sequential["cheap_a"].total == 24
+    assert sequential["cheap_b"].total == 19
+    assert sequential["cheap_c"].total == 14
+
+
+def test_parallel_run_all_preserves_failure_semantics(tmp_path: Path) -> None:
+    d = tmp_path / "strategies"
+    _write_strategy(d, _FILTER_TEMPLATE.format(sid="ok_first", threshold=10.0))
+    _write_strategy(
+        d,
+        '''
+META = {"id": "boom", "name": "boom"}
+def filter(df, params):
+    raise ValueError("injected strategy failure")
+''',
+    )
+    _write_strategy(d, _FILTER_TEMPLATE.format(sid="ok_last", threshold=15.0))
+    engine = StrategyEngine(strategy_dirs=[d])
+    context = _context()
+
+    for parallel in (False, True):
+        with pytest.raises(ValueError, match="injected strategy failure"):
+            engine.run_all(context, parallel=parallel)