The project addresses the climatic characteristics of the northern cold region and the industry common problems of low gas production rate, low degree of self-control, and inability to operate continuously and stably throughout the year in the use of agricultural waste biogasification, combined with existing large-scale biogas projects, and through improvement and perfection of existing technology Achievements, build a recycling agriculture model with biogas as a link, integrating "waste treatment, biogas utilization, fertilizer production, and crop planting", and establish a comprehensive demonstration of industrialized treatment of agricultural wastes and biogas utilization in accordance with the environmental characteristics of the cold regions in northern China system.    This technology has entered the research and development stage in October 2016. As of September 2018, the automatic control system has been installed for the demonstration biogas project and the straw yellow storage field has been established with 20,000 square meters to increase the gas production rate of the improved biogas project. 30%, to realize the fully automated control of the biogas project, with an annual output of 2,000 tons of organic fertilizers such as biogas slurry and residue, and providing free technical training for farmers to use 200 people. Through the application and demonstration of the technical system, a complete service system for benefiting the people will be built. Provide a full set of technical training for the biogas industry in Heilongjiang Province, so that the results can be implemented and promoted.