User service source management method and device

The invention provides a user service source management method and a user service source management device. The method comprises: a base station receives a user terminal and closed user group correspondence sent by a mobile management unit; and the base station allocates service resources according to the correspondence. When a resource competition occurs between users of a CSG and users out of the CSG, the method and the device make resources allocated to the users of the CSG first and therefore protects the resource possession priority of the users of the GSG.