Method and apparatus for providing streaming service based on p2p, and streaming service system using the same

A method and a device for providing a P2P-based streaming service, and a streaming service system using the same are provided to reduce a load of a streaming server and enable a peer receiving software to select the other peer to provide an optimal service irrespective of a network state by streaming the streamable software from one peer to other peers within a license range. A peer communicator(410) transceives a streamable software list and a streamable peer list for the specific software by communicating with other peers or the streaming server. A streaming software storing part(420) stores the streamable software. A peer server(440) reads the software from the streaming software storing part and transfers the read software to the peer requesting the software by receiving a streaming service request for the software. A peer client(430) requests the streaming service of the software to the other peer and stores the software streamed from the other peer to the streaming software storing part according to the request. The peer communicator includes a P2P communicating module(411), a software managing module(412), and a license managing module(413).