Embodiments of the present disclosure provide an access point name (APN) authorization method, apparatus, and system. The APN authorization method includes: determining, by a network device, a target APN of user equipment UE and a type of an access network that the UE currently accesses; obtaining, by the network device, information about an authorized access network type corresponding to the target APN of the UE; and determining, by the network device according to the type of the access network that the UE currently accesses and the information about the authorized access network type corresponding to the target APN of the UE, whether the target APN of the UE is authorized. In the present disclosure, when APN authorization determining is performed, an operator can appropriately control the APN which the UE is allowed to access.