A media content updating method is presented, wherein the method is performed by a media transmit end, including obtaining a changed media object attribute on a side of the media transmit end; determining an updating operation instruction for the changed media object attribute according to a change type of the changed media object attribute; and sending a first announcement message to a media receive end, where the first announcement message includes the updating operation instruction and the changed media object attribute, so that the media receive end updates, according to the updating operation instruction and the changed media object attribute, media content that is on the side of the media transmit end and that is stored on a side of the media receive end. In embodiments of the present disclosure, an announcement message carries a changed media object attribute, so that a bandwidth occupancy rate can be reduced.