The P2P system developed by using blockchain technology is mainly used to help supervise P2P enterprises, the borrower's credit information is transparent, the transaction structure cost is low, and the industry infrastructure (blockchain technology can be regarded as a very important new infrastructure construction for P2P and even the whole Internet financial system). At present, enterprises that use blockchain technology to develop P2P systems, such as Tang Yingzhong Chuang, are important development enterprises of blockchain technology in trading systems and practical applications.