Abstract:The Co-building Community Garden(CCG) is an all-age friendly, diverse energetic, nature friendly green public place created in Shenzhen to promote community building and co governance through multi-party participation in social governance. Based on the theory of collaborative governance, this article establishes an analytical framework of collaborative governance mechanism, selects Haiyue CCG with better collaborative co-build effect as the object, studies its co-build process, and proposes the development strategy of CCG as follows: 1) Refine the system of collaborative construction and formulate the rules of participation of diversified funds; 2) Strengthen publicity and optimize the system of incentives for participation; broaden the channels of participation of diversified subjects and set up a collaborative information platform; 3) Improve the system of supervision and feedback, and cultivate a professional executive institution for the whole process.