Provided are a processing method, apparatus and system for a service flow processing policy. The method comprises: a forwarding plane device receiving an operation request for a service flow processing policy sent by a first control domain, wherein the operation request for the service flow processing policy comprises a service flow identifier corresponding to a policy to be processed; acquiring an identifier of the first control domain according to the operation request for the service flow processing policy; determining whether to allow the first control domain to operate the policy to be processed; and if the forwarding plane device determines that the first control domain is allowed to operate the policy to be processed, operating the policy to be processed according to the operation request for the service flow processing policy. Authentication is performed on a control domain that issues an operation request, and when the control domain is allowed to perform an operation, the corresponding operation is