Service processing method and device and storage medium

The embodiment of the invention provides a service processing method and device and a storage medium, relates to the technical field of communication, and solves the technical problem that existing service access causes great pressure to a signaling load of a 5G core network and brings certain influence to service experience of 5G users. The method comprises the following steps that: after an NRF receives a first message sent by an AMF, when a required service is a service provided by a home network of a roaming user, determining default address information of core network equipment of the home network in response to the first message; and subsequently, the NRF sending default address information of the core network equipment of the home network to the AMF, so that the AMF sends a second message to the core network equipment of the home network through a first service communication proxy SCP in the roaming network where the roaming user is located and a second SCP in the home network. According to the inventi