The invention discloses an audio/video playing method, device and system. The method includes the steps that: an initiating terminal sends a play invitation request to a target terminal; the target terminal returns a response that whether to accept the play invitation; after receiving the response that the target terminal accepts the play invitation, the initiating terminal sends the initiating play information of the audio/video played currently to the target terminal which accepts the play invitation; the target terminal accepting the play invitation plays the audio/video according to the initial play information; the initiating terminal and the target terminal send accepting the play invitation report real-time play information to a server; the server determines a playing course according to the received real-time play information, and sends the playing course to the initiating terminal and the target terminal accepting the play invitation; the initiating terminal and the target terminal accepting the play invitation regulate the playing course of the audio/video according to the sent playing course information. According to the audio/video playing method, more than two terminals can synchronously play the same audio/video, and the operational difficulty is reduced.