Gnutella protocol simply uses flooding algorithm to route peer's querying, so it has the poor scalability problem. For not using down-layer's routing information of Internet, it also has the common problem that its querying routing is just implemented on application layer, and its efficiency is low. The distributions of topology nodes in Gnutella and Internet are reviewed, and they not only exhibit power law and small world properties, but also have the near power-coefficient t. A new distributed peer-to-peer network model based on active network technology (active distributed peer-to-peer network, ADP2PN) is proposed, and its prototype system is implemented. Simulation results about ADP2PN's prototype architecture and querying routing algorithm show that it could effectively resolve the above problems, so the model is reasonable and valid.