Abstract: The core weakness of promoting comprehensive rural revitalization through urban-rural integration at the county level lies in the integration of rural industries, with the strengthening of new-type rural collective economy being the key. Based on the resource integration theory and collaborative governance theory, this paper reveals the internal mechanism of how the new-type rural collective economy empowers the integrated development of rural industries through resource integration mechanisms, social capital participation mechanisms, interest linkage and sharing mechanisms, and collaborative governance mechanisms. It is still urgent to break through the practical difficulties such as the weak resource allocation capacity of new-type rural collective economic organizations, insufficient motivation for social capital to participate in the integration of village collective industries, imperfect interest linkage and sharing mechanisms for members, and unsound collective governance systems in villages and communities. Accordingly, it is proposed to innovate the resource integration models and mechanisms of the collective economy with county-level characteristics in villages and communities, improve the incentive mechanism for the effective embedding of social capital in the integrated development of the entire rural industrial chain, establish an interest linkage and sharing mechanism for village and community industrial clusters, and build a collaborative governance system with village and community collective industrial functional areas as the carrier to facilitate the high-quality and integrated development of rural industries.