A method for paging a terminal in a multi-carrier system is disclosed in the present invention, and the method includes that: the terminal enters an Idle mode, and the system selects as a paging carrier for the terminal a fully configured carrier which a Multicast Broadcast Service (MBS) is sent on so as to send a paging message; the terminal receives MBS service on the carrier where the MBS service is sent, simultaneously receives the paging message on the paging carrier, and performs the corresponding operation according to the paging message. A system for paging a terminal in a multi-carrier system is also disclosed in the present invention. Based on the method and system, it is possible for the terminal to receive the paging message of the system efficiently and duly while receiving multicast broadcast service.