The invention discloses a processing method for synchronizing transport stream and audio/video. The method comprises the following steps of obtaining a first video ES (elementary stream) capable of being processed in a TS (transport stream) document, recording a start display time mark Video Valid Start PTS (program transport stream) of the video ES; analyzing the TS document to obtain audio ESs in the TS document in sequence; comparing whether the display time mark PTS of the audio ES is greater than or equal to the Video Valid Start PTS; if not, discarding the audio ES; if so, recording the audio ES as a first audio ES, and recording the PTS as an Audio Valid Start PTS; sending the Video Valid Start PTS, Video Valid Start DTS, Audio Valid Start PTS and the TS document to a TS synchronizer, so that the synchronization of the starting time of the transport stream TS video and audio can be realized; and the problem that the video starting time and the audio starting time at the starting of the TS document are inconsistent is effectively solved, thus, the program quality is improved and the user experience is improved.