In recent years，P2P platform has introduced new business model and operation mode，which gradually deviates from the role of “information intermediary”. There are many illegal behaviors in the platform，such as false propaganda，fund pool and guarantee，which lead to the crime of illegally absorbing public deposits，fund-raising fraud，contract fraud and other crimes. However，there are many problems in the regulation of P2P platform，such as the lack of relevant regulations on platform false propaganda，the confusion of crime and non crime in the use of fund pool，and the fuzzy boundary between this crime and that crime in P2P crime related cases. Therefore，we should correctly grasp the limit of criminal law intervention，not only to maintain the modesty of criminal law，but also to play its protective role. Adhere to the coordination and connection of criminal law regulation and administrative supervision，and solve the alienation platform by learning from each other. At the same time，we should establish the standard of “amount+circumstances”. So as to effectively promote the healthy development of P2P platform and reduce the occurrence of crime.