A mobile edge computing processing method, comprising: receiving, by a radio access network device, local computing capability information from at least one local computing device, wherein the local computing capability information comprises at least one of the following information: a local computing function supported by the local computing device, a local computing algorithm supported by the local computing device, microservice information supported by the local computing device, an average processing delay of the local computing device, or current processing load of the local computing device; reporting, by the radio access network device, the local computing capability information to the core network device; receiving, by the radio access network device, a radio resource control RRC message sent by a terminal device UE, wherein the RRC message carries a protocol data unit PDU session setup request message, and the PDU session setup request message is a non-access stratum NAS message; sending, by the radio access network device, a first interface message to a core network device, wherein the first interface message carries the PDU session setup request message; receiving, by the radio access network device from the core network device, a second interface message, wherein the second interface message carries an identifier of a PDU session and local computing request information, and the local computing request information comprises at least one of the following information: a local computing function, a local computing algorithm, microservice information, or a local computing time budget; determining, by the radio access network device, based on the local computing capability information and the local computing request information, the local computing device that provides the local computing service for the PDU session; and setting up, by the radio access network device, the PDU session between the local computing device and the UE. receiving, by a radio access network device, local computing capability information from at least one local computing device, wherein the local computing capability information comprises at least one of the following information: a local computing function supported by the local computing device, a local computing algorithm supported by the local computing device, microservice information supported by the local computing device, an average processing delay of the local computing device, or current processing load of the local computing device; reporting, by the radio access network device, the local computing capability information to the core network device; receiving, by the radio access network device, a radio resource control RRC message sent by a terminal device UE, wherein the RRC message carries a protocol data unit PDU session setup request message, and the PDU session setup request message is a non-access stratum NAS message; sending, by the radio access network device, a first interface message to a core network device, wherein the first interface message carries the PDU session setup request message; receiving, by the radio access network device from the core network device, a second interface message, wherein the second interface message carries an identifier of a PDU session and local computing request information, and the local computing request information comprises at least one of the following information: a local computing function, a local computing algorithm, microservice information, or a local computing time budget; determining, by the radio access network device, based on the local computing capability information and the local computing request information, the local computing device that provides the local computing service for the PDU session; and setting up, by the radio access network device, the PDU session between the local computing device and the UE.