The invention discloses an Internet live system comprising a live terminal, a data distribution module based on an NDN network and a user terminal, wherein the data distribution module comprises a preprocessing server, a streaming media server, a catalog management server and a network transmission unit; the network transmission unit is composed of a plurality of router nodes based on the NDN network, the plurality of router nodes are divided into a plurality of layers according to a topological structure of a network transmission unit, wherein the router node closest to the streaming media server belongs to a first layer, the router node closest to the user terminal belongs to the lowest level, and the router node at the lowest layer and the user terminal cache same video data, and from the lowest layer to the first layer, the video data cached by the router nodes at every layer is gradually from new to old. According to the system provided by the invention, the NDN network mechanismis applied to the live system, so tat the performance of the live system is effectively improved; furthermore, due to the cache strategy used by the invention, the data delay can be reduced, and the cache space can be saved.