A packet switched (PS) service identification method and a terminal, where a weight of at least one socket corresponding to a PS service is determined, a key socket is determined from the at least one socket according to the weight of the at least one socket, and an identifier of the key socket is sent to a network side such that the network side formulates a policy and charging control (PCC) rule according to the 5-tuple. In this PS service identification process, because the terminal does not encrypt the PS service, the terminal can accurately identify the PS service.