User permission management method and system

The invention provides a user permission management method and a user permission management system, which aim to solve the problem of complex user permission management. The user permission management method comprises the following steps that primary account numbers are created for all two-stage systems by a client end of a first-stage system administrator; the primary account numbers are respectively sent to client ends of two-stage system administrators of all of the two-stage systems by the client end of the first-stage system administrator, permissions of the client ends of all of the two-stage system administrators are set, and the permissions of the client ends of all of the two-stage system administrators include creation or management of respective two-stage system users and role assignment of the respective two-stage system users; the client ends of all of the two-stage system administrators are used for creating or managing the respective two-stage system users and assigning roles for the respective two-stage system users under the corresponding primary account numbers. By using the user permission management method provided by the invention, in the conditions of multiple users and complex user permissions, hierarchical management is realized, so that the administration authority is clear, and the problem of complex user permission management can be preferably solved.