The present invention provides a mobile terminal video conference implementation method and apparatus, and related devices. The method used in a server side comprises the steps of when multiple mobile terminals perform an audio conference, and a speech image release request initiated by any one of the multiple mobile terminals is received, opening a video channel of any mobile terminal, wherein the video channel is used for uploading a speech image; asking whether the other mobile terminals joining the audio conference agree to open video channels, wherein the video channels are used for receiving the speech image; and sending the speech image to mobile terminals that agree to open the video channels so as to be played. Through adoption of the method, the mobile terminal video conference can be implemented with low network load and resource consumption, and under the constraint of an existing wireless network environment and the mobile terminal, the development difficulty of the wireless terminal and resource consumption are lowered as much as possible. Interaction between the mobile terminal and the network signal is simple.