Communication security management method and system for video conference system

The invention discloses a communication security management method and system for a video conference system, and relates to the technical field of communication videos, and the method comprises the steps: presetting a multi-stage ip network unit, setting the authority of the multi-stage ip network unit, and obtaining a conference channel condition according to the authority and a conference demand; judging whether the conference channels are in the same channel or not according to the conference channel condition, and if not, selecting a first video transmission mode to perform video transmission; and if the first video transmission mode and the second video transmission mode are in the same channel, selecting a second video transmission mode to perform video transmission, predicting a QoE score of the video according to a preset QoE prediction model during transmission in the second video transmission mode, and switching the second video transmission mode to the first video transmission mode or controlling t