The structural imbalance of supply and demand of agricultural products is the result of agricultural products overemphasizing quantitative growth and neglecting quality improvement. The structural reform of agricultural supply side is to optimize the allocation of agricultural production factors, improve the quality and efficiency of supply, and meet the quality needs of consumers. The optimization of agricultural supply factors is the result of effective supply, rational allocation and comprehensive utilization of natural resources and social resources. The success of Chu Orange Manor has explained the function of the optimization of supply factors to the development of characteristic agriculture. That is, it has promoted the development of high-end agriculture, promoted the brand value of agricultural products, promoted the competitiveness of agriculture, broken the international green trade barrier of agricultural products, promoted the development of modern agriculture with characteristics, and realized the sustainable development of rural areas.