The embodiment of the invention provides a data backup method based on a video conference. The method is applied in an articulated naturality web, the articulated naturality web comprises an articulated naturality web server, a conference control terminal and a plurality of participated terminals, a conference communication list of the plurality of participated terminals is stored in the conference control terminal, the participated terminals comprise backup terminals and a first participated terminal set by the conference control terminal, and the method comprises the following steps: when the conference control terminal receives a fault message of the first participated terminal, the conference control terminal extracts setting information of the first participated terminal and configures the backup terminal with the setting information, and then updates the conference communication list; the conference control terminal sends the updated conference communication list to the articulated naturality web server; the articulated naturality web server is used for acquiring video conference data of the backup terminal according to the updated conference communication list, and transmitsthe video conference data to the other participated terminals. Processing efficiency of video conference faults is improved greatly.