A mobile communication method according to the present invention includes the steps of: transmitting, to a mobile switching center MME/SGSN, a NAS connection establishment request for the specific communication, while an AS connection is established between the mobile station UE and a radio access network apparatus eNB/RNC; determining, at the mobile switching center MME/SGSN, to restrict establishment of the NAS connection for the specific communication, when the NAS connection establishment request signal is received and when a predetermined condition is satisfied; and restricting, at the mobile station UE, transmission of a first connection establishment request signal and transmission of the NAS connection establishment request signal, after reception of a rejection signal including a restriction time period for restricting establishment of the NAS connection for the specific communication until expiry of the restriction time period.