The invention relates to a service calling method and device. The method comprises the following steps: receiving a service calling request initiated by equipment and used for calling designated services; searching a user identifier bound with equipment identifier of the equipment; determining a public identifier corresponding to the designated service when the equipment identifier has the permission for calling the designated service and corresponding to the user identifier; sending a command for calling the designated service according to the user information corresponding to the user identifier to a business server corresponding to the public identifier; receiving a service calling result fed back by the business server and aiming at the command; and feeding back the service calling result to the equipment. The service calling efficiency is improved by use of the scheme provided by the application.