The paper presents an approach which constructs networked service system for RP (Rapid Prototyping) industries, summarizes the networked service pattern, and discusses the networked service matching and composition of RP enterprise. It analyzes the technical theory of system construction, description metamodel of networked service based on domain ontology is built to describe the interior of enterprise and the dynamic connection between enterprises. Technical route and theoretical structure model of system is established, autonomic computing and service composition algorithm are used. It will provide professional RP service interfaces and venture platform for middle and small enterprises which they can run business effectively. A new pattern is provided for quick response service of RP enterprise and it will be expected to have definite reference for future research on information technology of RP service industries. It plays a positive role to improve RP manufacturing service independent innovation, informationization development and level of advanced manufacturing technology.