The present invention discloses a method and an apparatus for synchronization processing, wherein the method for synchronization processing includes: a designated network element receiving multiple data bursts of a Multimedia Broadcast Multicast Service transmitted by its upper layer network element, wherein data packets in the data bursts carry timestamp information; for multiple data bursts whose timestamp locates before a current available transmitting time interval, the designated network element starting to transmit the data packets belonging to the multiple data bursts in turn from the start time of the current available transmitting time interval. By means of the present invention, the synchronization between the lower layer network elements can be kept and the performance of a system can be stabilized.