Service management method, device and system

The invention discloses a service management method, device and system and belongs to the technical field of computers. The method includes the steps that an authorization code of a user account is obtained; an authorization information obtaining request carrying the authorization code is sent to an open platform server; authorization information sent by the open platform server is received, the authorization information includes an authorization token and a permission set identifier, and a permission set corresponding to the permission set identifier comprises the hosting permission of at least one service of the user account; the authorization token serves as the certificate, and the services with the hosting permission are hosted. According to the service management method, device and system, the problems that in the prior art, a public operator manages various services of the public account by himself, development and management of the services are not facilitated, and meanwhile the management resources and the management cost are wasted are solved, part or all of the services of the user account are delivered to a third-party client side to be hosted and operated, development and management of the services are facilitated, and meanwhile the effect of saving the management resources and saving the management cost is achieved.