Structured and unstructured p2p topology model both have their own advantages and disadvantages. According to this issue, hierarchical and hybrid topology p2p mode based on chord protocol and interest subnet is proposed and established, whose upper layer makes use of bilateral search on chord loop and lower layer builds interest subnet where register node records search requests and results and stores popular resource table. It is also important to maintain model. The secondary distribution and networking strategy about new node help it join in interest subnet quickly. And the way of backing up register node and super node make the system’s robustness strong. It is showed by performance evaluation that this model can reduce query delay and improve the efficiency of resource location to some extend.