The invention discloses a paging method which is used for solving the problems of the prior art of great network pressure load, unsafe network and wasted network resources owing to a big paging scope. In the method, before a paging order is sent out, the information of a base station controller in a district in which a called mobile station stays ultimately is obtained, and a paging order containing the information of the district in which the called mobile station stays ultimately is sent to the the base station controller. And the base station controller inquires a self-database according to the district information and obtains the neighborhood list of the district in which the called mobile station stays ultimately. Then, the paging order is sent to the district and the receiving and sending platform of the base station of the neighboring districts. According to the proposal proposed by the invention, the paging scope is reduced, the paging load is reduced, and the network security is improved. At the same time, a paging system and a device are also disclosed.