An embodiment of the present disclosure provides a method for obtaining a V2X communication policy on expiry of at least part of the V2X communication policy. The method includes: transmitting, by a terminal device via an AMF, an interface indication to a PCF, the interface indication being carried in a request message, and a bit value of the interface indication being used for indicating whether a policy for V2X communication over a PC5 interface and/or a policy for V2X communication over an Uu interface is requested; and receiving, by the terminal device from the PCF via the AMF, at least one of the policy for V2X communication over the PC5 interface and the policy for V2X communication over the Uu interface according to the bit value of the interface indication.