The invention discloses a network service providing, strategy rule evaluating and service component selecting method and a network service providing, strategy rule evaluating and service component selecting device. A communication network framework comprises a management layer and an executive layer, wherein the management layer is used for acquiring network service demands of a user, and establishing, arranging and dispatching functional components on the executive layer based on the network service demands; the executive layer is used for providing network service to the user, and / or reporting information to be used to the management layer during the process of establishing, arranging and dispatching the functional components by the management layer, the executive layer is formed by networking a plurality of the functional components, and each functional component comprises at least one of a network component and a service component. According to the technical scheme provided by the invention, the operator can customize and dispatch the network automatically according to user demand, thereby providing service to the user more conveniently.