Abstract:Abstract: More and more agriculture-related colleges and universities are combining education activities with production practice. Since the model of Science and Technology Institute launched by China Agricultural University in 2009, the operation mode of science and Technology Institute, which combines the integration of "industry, university and research" with serving rural areas, is highly coupled with the national rural revitalization and gradually rises to a national action. Science and technology institutes integrating government, industry, university, research and application have been carried out in more and more universities. This paper takes the mode of science and technology colleges and universities related to agriculture as the research object, based on the perspective of rural revitalization, explores the horizontal and vertical practice of science and technology colleges entering the countryside to help rural revitalization, excavates the guarantee mechanism at the macro level, meso level and micro level in the operation of the ecological chain of science and technology colleges, and thinks about and puts forward some ideas on the existing mode of the ecological chain of science and technology colleges.