Abstract:Different from "rural cooperatives plus small farmers", "companies plus small farmers" and other poverty alleviation models driven by business and industries, the ways such as "researchers + cooperatives + small farmers", under the science and technology commissioner system, has shown the dual effect of poverty alleviation driven by technology and industry. Under the science and technology commissioner system, the logical framework of "research-influence-connection" of technological innovation, market cultivation and quality improvement, the clear effect on small farmers about synergistic innovation of technology have been shown in "Science and Technology Poverty Alleviation". From the perspective of performance and impact of agricultural extension, the economic connotation model and ways for poverty alleviation contained in the science and technology commissioner system is helpful for promoting the transformation and development of agricultural productivity, and establishing a sustainable agricultural economy, even having a direct influence on connecting smallholder farmers with agricultural modernization.