Access control method, communication device and storage medium

Provided are an access control method, a communication device and a storage medium, the method being applied to an access and mobility management function network element of a visited network, the method comprising: receiving a registration request message sent by a terminal, the registration request message carrying an identifier of a home network of the terminal; if the identifier of the home location network does not exist in a home location network list which does not support the networking mode of the visited location network, sending a discovery request message to a network storage function network element of a roaming gateway office of the visited location network; receiving a discovery response message returned by the network storage function network element, wherein the discovery response message is used for indicating that the home network does not support the networking mode of the visited network; and according to the discovery response message, adding the home network to a home network list which