diff --git a/backend/SystemUpdater/UpdateManager.py b/backend/SystemUpdater/UpdateManager.py
index c87ec26..6220ba0 100644
--- a/backend/SystemUpdater/UpdateManager.py
+++ b/backend/SystemUpdater/UpdateManager.py
@@ -91,12 +91,12 @@ class UpdateManager():
             logging.error(e)
 
     # 进行本地deb包安装的操作
-    def start_deb_install(self, upgrade_mode, deb_path = "", is_install = False):
+    def start_deb_install(self, deb_path = "", is_install = False):
         try:
             absolute_path, debname = os.path.split(deb_path)
             logging.info("About to Install Package: %s.",str(debname))
             install_backend = get_backend(self, InstallBackend.ACTION_INSTALL_DEB)
-            install_backend.start(upgrade_mode, partial_upgrade_list = deb_path)
+            install_backend.start_alone(partial_upgrade_list = deb_path, _is_install = is_install)
         except Exception as e:
             logging.info(str(e))
 
diff --git a/backend/SystemUpdater/UpdateManagerDbus.py b/backend/SystemUpdater/UpdateManagerDbus.py
index d58926c..1b0ee96 100755
--- a/backend/SystemUpdater/UpdateManagerDbus.py
+++ b/backend/SystemUpdater/UpdateManagerDbus.py
@@ -242,7 +242,7 @@ class UpdateManagerDbusController(dbus.service.Object):
         try:
             is_install = bool(_is_install)
             logging.info('method InstallDebFile and is_install:%r...',is_install)
-            self.parent.start_deb_install(MODE_UPGRADE_PARTIAL,path,is_install)
+            self.parent.start_deb_install(deb_path = path, is_install = is_install)
             return True,'success'
         except Exception as e:
             logging.error(False, str(e))
diff --git a/backend/SystemUpdater/backend/__init__.py b/backend/SystemUpdater/backend/__init__.py
index e6423c7..86be013 100644
--- a/backend/SystemUpdater/backend/__init__.py
+++ b/backend/SystemUpdater/backend/__init__.py
@@ -130,8 +130,19 @@ class InstallBackend():
                 self.window_main.dbusController.UpdateDependResloveStatus(_success,is_remove_pkgs,pkgs_remove,raw_description,delete_desc,header,desc)
             else:
                 self.window_main.dbusController.DistupgradeDependResloveStatus(_success,is_remove_pkgs,pkgs_remove,raw_description,header,desc)
+        #修复未满足的依赖关系 与apt-get -f install匹配
+        elif self.action == self.ACTION_FIX_BROKEN:
+            self.fix_broken()
+        #卸载包
+        elif self.action == self.ACTION_REMOVE_PACKAGES:
+            self.purge_packages(partial_upgrade_list)
+        #更新cache
+        elif self.action == self.ACTION_UPDATE:
+            self.update()
+
+    def start_alone(self,partial_upgrade_list = [],_is_install = False):
         #单独下载功能
-        elif self.action == self.ACTION_DOWNLOADONLY: 
+        if self.action == self.ACTION_DOWNLOADONLY: 
             try:
                 self.download_deb(partial_upgrade_list)
             except Exception as e:
@@ -142,15 +153,7 @@ class InstallBackend():
                 self.install_deb(install_path = partial_upgrade_list, install_force = True)
             except Exception as e:
                 logging.error(str(e))
-        #修复未满足的依赖关系 与apt-get -f install匹配
-        elif self.action == self.ACTION_FIX_BROKEN:
-            self.fix_broken()
-        #卸载包
-        elif self.action == self.ACTION_REMOVE_PACKAGES:
-            self.purge_packages(partial_upgrade_list)
-        #更新cache
-        elif self.action == self.ACTION_UPDATE:
-            self.update()
+        
 
     def update(self):
         """Run a update to refresh the package list"""