Pseudo base station protection method and device

The invention provides a pseudo base station protection method and device. The protection method comprises the steps of detecting whether a location update request is sent to a target base station or not; after it is detected that the location update request is sent to the target base station, judging whether mobility management information from the target base station is received in preset time or not; when it is judged that the mobility management information is received in the preset time, determining that the target base station is a normal base station and setting a normal base station identifier for the target base station; and when it is judged that the mobility management information is not received in the preset time, determining that the target base station is a pseudo base station and setting a pseudo base station identifier for the target base station. Through application of the technical scheme, the pseudo base station identification accuracy can be effectively improved, and the short message fro