Guiding small farmers to carry out cooperation and alliance is a new way to improve the organization of small farmers and promote the organic connection between small farmers and the development of modern agriculture.Based on the theory of resource orchestration，this paper conducts a case study on Sichuan JiuNong Agricultural Technology Company to systematically explore the mechanism for small farmers to realize value co-creation through alliances.The study found that small farmers finally realize the co-creation of economic value and emotional value through alliances.The process of realizing value co-creation mainly go through three stages of resource orchestration：resource structuring，resource capacity transformation，and leverage utilization，which revitalizes the resources and capacity of small farmers. In full consideration of factors such as regional agricultural production and operation conditions and farmers’ own characteristics，guiding small farmers to carry out cooperation and alliances is conducive to realizing the organic connection between small farmers and modern agricultural development.