A physical random access channel enhanced transmission method, a network device, and a terminal are disclosed, where implementation of the terminal is used as an example, and the terminal includes: a processor, configured to determine level information of physical random access channel PRACH enhanced transmission; and to determine a first characteristic parameter that is of PRACH enhanced transmission and that is related to the determined level information of PRACH enhanced transmission, where the first characteristic parameter includes transmit power and a preamble format; and a transmitter, configured to perform PRACH enhanced sending according to the first characteristic parameter determined by the processor.