This disclosure provides session processing methods and apparatuses. In an implementation, a method comprises receiving, from an application function apparatus, a request that comprises a continuity requirement of an application indicating whether a service of the application needs to remain uninterrupted for a user equipment when the user equipment moves, determining, for the application, a session and service continuity mode that satisfies the continuity requirement of the application, and sending policy information that comprises the session and service continuity mode.