The embodiment of the invention discloses a synchronization processing method, a synchronization processing system and a synchronization processing device. The method comprises the steps of: receiving a first synchronization request, wherein the first synchronization request comprises a Filter which is used for limiting the data needing to be synchronized; recording the relevant parameters of the Filter in the first synchronization request; and carrying out data synchronization according to the relevant parameters of the Filter. The system comprises a client terminal and a server. In the embodiment of the invention, when the data synchronization is carried out between the client terminal and the server, the relevant parameters of the Filter are transmitted; and the server receives and records the relevant parameters of the Filter or notifies the client terminal to record the relevant parameters of the Filter. If the synchronization needs to be performed again when the synchronization is failed or a synchronization breakpoint is reached, the client terminal or the server obtains the recorded relevant parameters of the Filter to perform synchronization operations, so that the data in synchronization operations can be reduced, and the synchronization time can be shortened.