The embodiments of the present disclosure relate to a cell selection method, a terminal device and a network device. The method includes obtaining, by a terminal device, an identifier of at least one cell corresponding to a network type supported by the terminal device; and determining, by the terminal device according to the identifier of the at least one cell, a target cell for cell selection or cell reselection. The network type is at least one of a Closed Access Group (CAG) network or a Stand-alone Non-Public Network (SNPN) network. The identifier of the at least one cell is an identifier of the CAG network or is an identifier of the SNPN network.