Method, Device and System and for Play Synchronization Control in Video Recommendation Service

The embodiment of the document discloses a method for play synchronization control in a video recommendation service, comprising a synchronization server receiving play progress information reported in real time by a controlling party terminal and controlled party terminal during a play process of a recommended video; the synchronization server calculating according to play progress information reported by the controlling party terminal to obtain a current play time point for the recommended video of the controlling party terminal, and sending the play progress information containing a current video play time point for the recommended video of the controlling party terminal to the controlled party terminal; the controlled party terminal calculating according to the play progress information to obtain the current play progress of the controlling party terminal, and adjusting the play progress of the recommended video to be consistent with the current play progress of the controlling party.