Exploration on the transformation and development of agricultural SMEs under the background of supply side structural reform—A case of a leading agricultural enterprise in Heilongjiang

China's Agricultural SMEs are facing seriously overcapacity and relatively high cost which caused low value-added space，industrial competitiveness and other issues. Aiming at the existing problems，this paper systematically summarizes the connotation for the structural reform of supply side，as well as the opportunities and challenges for the transformation of Agricultural SMEs. In this paper，we selected a typical agricultural leading enterprises in Heilongjiang province as the study case，and depth analysis of the development of the origin，evolution process and business model. It designs the diamond model of the value added strategy for the whole industry chain，in transfer mode，adjusting structure，enhancing quality，promoting integration，and reducing costs as the background. We deeply identified its innovative development path in the strategic operation，mainly including the modern agricultural service industry leading value-added path about planting areas construction in upstream of the industry chain，light asset operation leading value-added path about service platform Path in the middle part of the industry chain，and industry alliance leading value-added path about development of sales channel model in downstream of the industrial chain. To sum up，the corresponding enlightenment was given from relying on the government，using of the platform，membership value added，alliance establishment，innovative operation and so on. It provided a theoretical framework and case support for China's transformation and upgrading of Agricultural SMEs.