diff --git a/.gitignore b/.gitignore
index d98c921..b0ecaf5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,3 +8,4 @@ build/
 ComacDBInstall.spec
 src/__pycache__/Test.cpython-311.pyc
 dist/ComacDBInstall.exe
+src/Test.py
diff --git a/src/ComacDBInstall.py b/src/ComacDBInstall.py
index 999b800..196038d 100644
--- a/src/ComacDBInstall.py
+++ b/src/ComacDBInstall.py
@@ -186,7 +186,7 @@ class InstallComacDb:
         self.jar_path = get_resource_path(os.path.join("datas", "electromagnetic.jar"))
         self.new_java_path = 'D:/database/jdk/bin/java.exe'
         self.url = f'http://127.0.0.1:{self.comac_db_running_port}/index'
-        self.service_name = "comacDatabase"
+        self.service_name = "ComacDatabase"
         self.service_description = "数据库组件服务"
         # 路径配置
         self.datas_dir = get_resource_path(os.path.join('datas'))
@@ -200,11 +200,7 @@ class InstallComacDb:
 
     def start_comac_db(self):
         self.__delete_old_files(self.app_log_dir)
-        existStatus = check_service_exist(self.service_name)
-        if existStatus:
-            start_service_if_not_running(self.service_name)
-            return
-
+        self.__remove_pre_service()
         self.__register_and_start_service()
         pass
 
@@ -274,6 +270,13 @@ class InstallComacDb:
         subprocess.run(rf"net start {self.service_name}")
         time.sleep(10)
 
+    def __remove_pre_service(self):
+        stop_command = ["sc", "stop", self.service_name]
+        delete_command = ["sc", "delete", self.service_name]
+        subprocess.run(stop_command, capture_output=True, text=True)
+        subprocess.run(delete_command, capture_output=True, text=True)
+        pass
+
 
 if __name__ == '__main__':
     InstallMariaDb().start_install_mariadb()