The present invention provides a method for determining an unnecessary handover and a base station. The method includes: if a user equipment UE is handed over from a first cell to a second cell, and then handed over from the second cell to a third cell, determining, by a base station, a time threshold corresponding to a UE characteristic attribute parameter of the UE, and a time of stay of the UE in the second cell; determining, by the base station according to the time threshold corresponding to a UE characteristic attribute and the time of stay of the UE in the second cell that are determined, whether an unnecessary handover of the UE occurs; and determining that an unnecessary handover of the UE occurs if the time of stay is shorter than the time threshold. The present invention optimizes a method for determining whether an unnecessary handover occurs.