Message transmission method, device and system

The invention discloses a message transmission method, device and system, and belongs to the technical field of computers. A conference management device obtains a first policy set comprising one or more message distribution policies. And the conference management equipment sends the first strategy set to one or more conference terminals accessing the conference. A conference management device receives a message subscription request from a first conference terminal, the message subscription request comprising an indication of a target message distribution policy in a first policy set. And the conference management equipment sends the conference message in the conference to the first conference terminal based on the target message distribution strategy. According to the method and the device, the participant can select the corresponding message distribution strategy on the conference terminal according to the actual message viewing requirement, so that the conference terminal receives and displays the conferen