Data network media content access control router based on overlapped networks

The invention relates to a router which is composed of a body and external accessories. The body is composed of a shell, a control operation panel, a working-state indication lamp and an internal electrical member, the internal electrical member comprises an interaction control module, a network processing module, a storage expansion module, RJ45 connectors, a power source management module and a network isolation module, the network processing module is electrically connected with the working-state indication lamp, and the network processing module is respectively connected with a memorizer and the storage expansion module which is provided with a storage interface; the network processing module is further connected with the power source management module sequentially through a network isolation voltage transformation chip and a conversion control module, and the power source management module is electrically connected with a power adapter; the conversion control module is connected with the RJ45 connectors