Streaming media multi-level cache network acceleration system and method based on WebRTC

The invention discloses a streaming media multi-level cache network acceleration system based on WebRTC. The system comprises a CDN network structure and an intra-group client P2P (Peer to Peer) network group structure. The intra-group client P2P network group structure obtains cache resources from edge cache nodes of the CDN network structure. The intra-group client P2P network group structure comprises a client in support of WebRTC, and a signaling server. The client in support of WebRTC applies a browser cache technique. The system is equipped with a center data source multi-point data cache structure, and the service capability reliability of the system is improved.