The invention discloses an intelligent interaction method based on block chain intelligent retrieval matching. The method comprises the following steps: S1, establishing an intelligent matching identification system; S2, establishing a comprehensive evaluation system; S3, modeling a user problem according to the system; and S4, carrying out model optimization: optimizing the algorithm and the model, ensuring the overall effect and improving the user experience. According to the invention, a storage module, a big data cloud computing module, an AI intelligent matching module, an artificial intelligence module, a communication encryption module and a virtual telephone module are matched to form a set of intelligent system with accurate matching and accurate recommendation. Firstly, on the basis of solving the problem that a user finds a most appropriate consultant to ask questions, the problem is solved, and the method realizes flow simplification, intelligent matching, problem definition, communication encryption protection, customer privacy protection, user time saving, averagely improves the problem solving speed of the user, shortens the waiting and searching time of the user, and improves the good reputation index of the user to a certain extent.