Abstract: A cell selection method includes receiving, by an access stratum (AS) of a terminal device, first information from a non-access stratum (NAS) of the terminal device. The first information includes identity information of a first public land mobile network (PLMN) to be accessed by the terminal device. The cell selection method also includes determining, by the AS based on the first information, whether to camp on a first candidate cell. The first candidate cell supports the first PLMN. The first candidate cell satisfies a first camping condition. The first camping condition comprises a cell selection criterion and a service requirement. The service requirement is a preset threshold of a parameter reflecting signal quality of a cell.