diff --git a/tests/factor/test_fundamental_library.py b/tests/factor/test_fundamental_library.py
index 0b310d3..1838ed3 100644
--- a/tests/factor/test_fundamental_library.py
+++ b/tests/factor/test_fundamental_library.py
@@ -11,6 +11,13 @@ from sanguo_factor import fundamental_library  # noqa: F401  import 即注册
 from sanguo_factor.fundamental_adapter import FEATURE_COLUMNS
 from sanguo_factor.registry import list_factors, get_factor
 
+@pytest.fixture(autouse=True)
+def _ensure_fundamental_registered():
+    """其它测试模块清空 _REGISTRY 后只重挂 alpha/builtin(顺序依赖前科),
+    这里逐测试幂等重注册财务因子,保证本模块与顺序无关."""
+    fundamental_library._register_all()
+
+
 # 表达式可引用的列 = adapter 特征列 + 行情列 close(估值类 ÷ close×share_capital)
 _ALLOWED = set(FEATURE_COLUMNS) | {"close", "cs_rank"}