User point general exchange method and device, and medium

The invention discloses a user point general exchange method and device, and a medium, and the method comprises the steps that each merchant participant creates an account on an established alliance block chain, and writes a point management rule into the alliance block chain through an intelligent contract; the merchant participant sends an integral generation instruction and an integral change instruction to the alliance block chain, so that the node in the alliance block chain sends the corresponding integral to the account of the merchant participant according to the intelligent contract,sends the corresponding integral to the account of the user and changes the integral of the account of the merchant participant; The problems that a centralized point management mode is adopted in anexisting point platform, centralized point platform data records are easily maliciously tampered, safety and reliability are low, point data centralized management is conducted among merchants, data cannot be circulated, a dat