A paging method, a paging device and a readable storage medium thereof are disclosed. The method includes: measuring synchronization signal blocks to obtain signal qualities of the synchronization signal blocks; selecting suitable synchronization signal blocks from the synchronization signal blocks based on the signal qualities; selecting a target synchronization signal block from the suitable synchronization signal blocks; and transmitting a paging response message to a base station utilizing a random access channel resource and/or a random access preamble corresponding to the target synchronization signal block to instruct the base station to transmit a paging message utilizing a downlink beam corresponding to the target synchronization signal block.