Abstract: The great significance to and the main contents of building new socialist countryside of China were analyzed, and the position and role of agricultural engineering in new socialist countryside construction were discussed. The author holds the opinion that agricultural engineering science and technology should play a greater role in contributing to the new countryside construction through technological innovation, fully exerting the synthetic integration advantage of agricultural engineering, and providing scientific and technological support. In the process of building the new socialist countryside, the following six integrated technologies should be emphatically developed, i.e. integrated technology for basic farmland infrastructure construction, integrated technology for the mechanization of farm production process, integrated technology for production, livelihood and ecological facility, integrated technology for comprehensive use of biomass resources, integrated technology for rural energy and village civil construction, and integrated technology for agricultural produce processing industry clustering and agricultural recycling economy.