Embodiments of the present invention provide an access method and an apparatus. The method includes: receiving, by a converged mobility management network element, an access request of user equipment UE, where the access request is used to request to access a first network; obtaining, by the converged mobility management network element according to the access request, subscription data of the first network corresponding to the user equipment; when failing to obtain the subscription data, updating, by the converged mobility management network element, a continuous cumulative quantity of times; and when the continuous cumulative quantity of times meets a preset condition, sending, by the converged mobility management network element, first indication information to a base station device of a second network.