Embodiments of the present disclosure relate to a method, terminal device and apparatus for transmitting a physical random access channel (PRACH) and a method, network device and apparatus for receiving the PRACH. In an embodiment of the present disclosure, the method of transmitting PRACH comprises transmitting a physical random access channel, wherein the transmitted physical random access channel is different from a physical random access channel for initial access in at least one of parameter and structure. With embodiments of the present disclosure, the overhead of the PRACH transmission can be reduced in some cases, like a beam recovery request transmission and on-demand system information request transmission.