diff --git a/pytest.ini b/pytest.ini
new file mode 100644
index 0000000..c7b23ec
--- /dev/null
+++ b/pytest.ini
@@ -0,0 +1,3 @@
+[pytest]
+pythonpath = .
+testpaths = tests
diff --git a/sanguo_data/config.py b/sanguo_data/config.py
index 2815fcf..5259b7d 100644
--- a/sanguo_data/config.py
+++ b/sanguo_data/config.py
@@ -10,8 +10,17 @@ class DataConfig:
     performance: dict
 
 def load_config(path: str) -> DataConfig:
-    with open(path, "r", encoding="utf-8") as f:
-        raw = yaml.safe_load(f)
+    try:
+        with open(path, "r", encoding="utf-8") as f:
+            raw = yaml.safe_load(f)
+    except FileNotFoundError:
+        raise FileNotFoundError(f"配置文件不存在: {path}")
+    except yaml.YAMLError as e:
+        raise ValueError(f"YAML解析失败: {e}")
+
+    if not raw:
+        raise ValueError(f"配置文件为空: {path}")
+
     return DataConfig(
         data_paths=raw.get("data_paths", {}),
         data_sources=raw.get("data_sources", {}),
diff --git a/tests/data/__pycache__/__init__.cpython-314.pyc b/tests/data/__pycache__/__init__.cpython-314.pyc
deleted file mode 100644
index f849e1a..0000000
Binary files a/tests/data/__pycache__/__init__.cpython-314.pyc and /dev/null differ
diff --git a/tests/data/__pycache__/test_config.cpython-314-pytest-9.1.1.pyc b/tests/data/__pycache__/test_config.cpython-314-pytest-9.1.1.pyc
deleted file mode 100644
index dca3eb8..0000000
Binary files a/tests/data/__pycache__/test_config.cpython-314-pytest-9.1.1.pyc and /dev/null differ
diff --git a/tests/data/test_config.py b/tests/data/test_config.py
index 5ea5934..d66f1e2 100644
--- a/tests/data/test_config.py
+++ b/tests/data/test_config.py
@@ -1,4 +1,5 @@
 # tests/data/test_config.py
+import pytest
 from sanguo_data.config import load_config, DataConfig
 
 def test_load_config_returns_dataconfig(tmp_path):
@@ -25,3 +26,7 @@ performance:
     assert cfg.data_paths["daily_dir"] == "/tmp/daily"
     assert cfg.data_sources["daily"][0]["name"] == "eastmoney"
     assert cfg.performance["max_retries"] == 3
+
+def test_load_config_raises_on_missing_file():
+    with pytest.raises(FileNotFoundError, match="配置文件不存在"):
+        load_config("/nonexistent/path/config.yaml")