An access control method includes: receiving network side access association information sent by a network side, wherein the network side access association information includes first information, and the first information indicates a bandwidth of an initial bandwidth part of a target cell, or a bandwidth of a default bandwidth part, or a bandwidth of a first activated bandwidth part; and when the terminal does not support the bandwidth of the initial bandwidth part, or the bandwidth of the default bandwidth part, or the bandwidth of the first activated bandwidth part, performing access control processing on the target cell according to the network side access association information.