Embodiments of the present invention provide a synchronization method, user equipment, and a base station. The synchronization method includes: obtaining, by user equipment, synchronization information, where the synchronization information includes at least one of the following information: synchronization source selection parameter information, synchronization source indication information, or synchronization source priority information; receiving, by the user equipment, a first synchronization signal sent by at least one synchronization source; and determining, by the user equipment, a synchronization reference source according to the synchronization information and the first synchronization information. In the embodiments of the present invention, the synchronization information is obtained, and the synchronization reference source is determined according to the synchronization information and the synchronization signal of the at least one synchronization source, so that synchronization can be implemented.