Abstract: Rice and wheat are main grain crops in Jiangsu Province．Losses caused by humid climate and lack of time to dry after harvest exceed relevant standards．Therefore, it is necessary to vigorously promote and support grain drying and storage industry．Advantages and problems of drying loss reduction technology in grain producing areas were analyzed．Green drying loss reduction technology system for grain producing areas was structured．Grain drying technology integration, drying equipment supporting mode and drying operation mode were explored．It provided drying production guidance for business entities．This system divided grain drying and storage process into four modules: pre-drying before drying, fast green drying at place of origin, low-consumption temporary storage and long-term low-loss storage．Different business entities could choose combination of different modules according to their own production conditions to meet differentiated needs of different planting scales and operation modes for grain drying and storage．