Abstract: Based on the theory of collaborative governance, focusing on county rural areas, the basic elements of county rural public service supply, namely, the four collaborative subjects of farmers' demand, government, market and other multiple subjects of society were extracted. The collaborative structure was analyzed from the strategic level, structural level and operational level; the county rural public service supply system was expounded with the collaborative process of establishing trust relationship, reaching ideological consensus, effective participation and collaborative ability. On this basis, the optimization path of public service supply from the perspective of collaborative governance in terms of concept updating and strategy selection was put forward.

Key words: collaborative governance, county rural, public service supply