Self-adaptive network video source switching and user login authorization information synchronization method and device

The invention discloses a method and a device for synchronizing adaptive network video source switching and user login authorization information. The method comprises the following steps: judging whether a video source switching instruction of a terminal application is detected or not; when a video source switching instruction is detected, a synchronization message is controlled to be sent out, and video source information in the cache is controlled to be deleted; a video source switching instruction of the terminal application is reported to the background; controlling the terminal to enter a source switching and restarting process, controlling to inquire an account updating application corresponding to the video source switching instruction through terminal information, and synchronously notifying cache data of the account updating application; and when a login operation is detected, directly extracting the synchronized cache data from the cache information. The invention provides a self-adaptive switching