Under the action of market mechanism, there are many cooperation models to provide public services in China. Because of insufficient understanding of these models’ essential characteristics, they are often confused in practical use. Starting from their actual relationships, as four cooperation models on public service supplying i.e. publicprivate partnership, service outsourcing, franchised operation and government purchasing are often be used, on the basis of the summary of their connotation and concept, to clarify all kinds of cooperation models’ oughtrelationship is essential prerequisite for theoretical and practical studies on the partnership for public service supplying in China．