diff --git a/pytests/test_napcat_adapter_sdk.py b/pytests/test_napcat_adapter_sdk.py
index c6b1fdbd..8d82322f 100644
--- a/pytests/test_napcat_adapter_sdk.py
+++ b/pytests/test_napcat_adapter_sdk.py
@@ -1,9 +1,9 @@
 """NapCat 插件与新 SDK 对接测试。"""
 
+from importlib import import_module, util
 from pathlib import Path
-from typing import Any, Dict, List
+from typing import Any, Dict, List, Tuple
 
-import importlib
 import logging
 import sys
 
@@ -12,8 +12,10 @@ import pytest
 PROJECT_ROOT = Path(__file__).resolve().parents[1]
 PLUGINS_ROOT = PROJECT_ROOT / "plugins"
 SDK_ROOT = PROJECT_ROOT / "packages" / "maibot-plugin-sdk"
+NAPCAT_PLUGIN_DIR = PLUGINS_ROOT / "MaiBot-Napcat-Adapter"
+NAPCAT_TEST_MODULE = "_test_napcat_adapter"
 
-for import_path in (str(PLUGINS_ROOT), str(SDK_ROOT)):
+for import_path in (str(SDK_ROOT),):
     if import_path not in sys.path:
         sys.path.insert(0, import_path)
 
@@ -63,7 +65,41 @@ class _FakeGatewayCapability:
         return True
 
 
-def _load_napcat_sdk_symbols() -> tuple[Any, Any, Any, Any]:
+def _load_napcat_sdk_modules() -> Tuple[Any, Any, Any, Any]:
+    """动态加载 NapCat 插件测试所需的模块。
+
+    Returns:
+        tuple[Any, Any, Any, Any]:
+            依次返回常量模块、配置模块、插件模块和运行时状态模块。
+    """
+
+    if NAPCAT_TEST_MODULE not in sys.modules:
+        plugin_path = NAPCAT_PLUGIN_DIR / "plugin.py"
+        spec = util.spec_from_file_location(
+            NAPCAT_TEST_MODULE,
+            plugin_path,
+            submodule_search_locations=[str(NAPCAT_PLUGIN_DIR)],
+        )
+        if spec is None or spec.loader is None:
+            raise ImportError(f"无法为 NapCat 插件创建模块规格: {plugin_path}")
+
+        module = util.module_from_spec(spec)
+        sys.modules[NAPCAT_TEST_MODULE] = module
+        try:
+            spec.loader.exec_module(module)
+        except Exception:
+            sys.modules.pop(NAPCAT_TEST_MODULE, None)
+            raise
+
+    return (
+        import_module(f"{NAPCAT_TEST_MODULE}.constants"),
+        import_module(f"{NAPCAT_TEST_MODULE}.config"),
+        import_module(f"{NAPCAT_TEST_MODULE}.plugin"),
+        import_module(f"{NAPCAT_TEST_MODULE}.runtime_state"),
+    )
+
+
+def _load_napcat_sdk_symbols() -> Tuple[Any, Any, Any, Any]:
     """动态加载 NapCat 插件测试所需的符号。
 
     Returns:
@@ -71,10 +107,7 @@ def _load_napcat_sdk_symbols() -> tuple[Any, Any, Any, Any]:
             依次返回网关名常量、配置类、插件类和运行时状态管理器类。
     """
 
-    constants_module = importlib.import_module("napcat_adapter.constants")
-    config_module = importlib.import_module("napcat_adapter.config")
-    plugin_module = importlib.import_module("napcat_adapter.plugin")
-    runtime_state_module = importlib.import_module("napcat_adapter.runtime_state")
+    constants_module, config_module, plugin_module, runtime_state_module = _load_napcat_sdk_modules()
     return (
         constants_module.NAPCAT_GATEWAY_NAME,
         config_module.NapCatServerConfig,
@@ -103,6 +136,63 @@ def test_napcat_plugin_collects_duplex_message_gateway() -> None:
     assert gateway_component["metadata"]["protocol"] == "napcat"
 
 
+def test_napcat_plugin_uses_sdk_config_model() -> None:
+    """NapCat 插件应声明 SDK 配置模型并暴露默认配置与 Schema。"""
+
+    constants_module, _config_module, plugin_module, _runtime_state_module = _load_napcat_sdk_modules()
+    plugin = plugin_module.NapCatAdapterPlugin()
+
+    default_config = plugin.get_default_config()
+    schema = plugin.get_webui_config_schema(plugin_id="maibot-team.napcat-adapter")
+
+    assert default_config["plugin"]["config_version"] == constants_module.SUPPORTED_CONFIG_VERSION
+    assert default_config["chat"]["ban_qq_bot"] is False
+    assert default_config["filters"]["ignore_self_message"] is True
+    assert schema["plugin_id"] == "maibot-team.napcat-adapter"
+    assert schema["sections"]["chat"]["fields"]["group_list"]["type"] == "array"
+    assert schema["sections"]["chat"]["fields"]["group_list_type"]["choices"] == ["whitelist", "blacklist"]
+
+
+def test_napcat_plugin_normalizes_legacy_config_values() -> None:
+    """NapCat 插件应兼容旧配置字段并输出规范化结果。"""
+
+    constants_module, _config_module, plugin_module, _runtime_state_module = _load_napcat_sdk_modules()
+    plugin = plugin_module.NapCatAdapterPlugin()
+
+    plugin.set_plugin_config(
+        {
+            "plugin": {"enabled": True, "config_version": ""},
+            "connection": {
+                "access_token": "secret-token",
+                "heartbeat_sec": "45",
+                "ws_url": "ws://10.0.0.8:3012/onebot/v11/ws",
+            },
+            "chat": {
+                "ban_qq_bot": True,
+                "ban_user_id": ["42", 42, ""],
+                "group_list": [123, " 456 ", None, "123"],
+                "group_list_type": "whitelist",
+                "private_list": "invalid",
+                "private_list_type": "unexpected",
+            },
+            "filters": {"ignore_self_message": True},
+        }
+    )
+
+    config_data = plugin.get_plugin_config_data()
+
+    assert "connection" not in config_data
+    assert config_data["plugin"]["config_version"] == constants_module.SUPPORTED_CONFIG_VERSION
+    assert config_data["napcat_server"]["host"] == "10.0.0.8"
+    assert config_data["napcat_server"]["port"] == 3012
+    assert config_data["napcat_server"]["token"] == "secret-token"
+    assert config_data["napcat_server"]["heartbeat_interval"] == 45.0
+    assert config_data["chat"]["group_list"] == ["123", "456"]
+    assert config_data["chat"]["private_list"] == []
+    assert config_data["chat"]["private_list_type"] == constants_module.DEFAULT_CHAT_LIST_TYPE
+    assert plugin.config.napcat_server.build_ws_url() == "ws://10.0.0.8:3012"
+
+
 @pytest.mark.asyncio
 async def test_runtime_state_reports_via_gateway_capability() -> None:
     """NapCat 运行时状态应通过新的消息网关能力上报。"""