Disclosed are method for operating a designated service, a service unlocking method and terminal. The method comprises: receiving an operation request for operating the designated service from a user, the operation request containing identification information of the designated service; sending a state inquiry request to a locking server, wherein, the state inquiry request contains identification information of the designated service, and is used to inquiry current state of the designated service; sending a request for operating the designated service to an operating server related to the designated service when the terminal receives from the locking server a prompt information that indicates permitting to continue to execute the designated service, and receiving a result of operation from the operating server; and conducting no operation to the designated service when the terminal receives from the locking server a prompt information that indicates not permitting to continue to execute the designated service.