Abstract: This paper briefly presents the main contents, procedures and methods of implementing the project "the comprehensive technologies of paddy field mechanization for increasing pro-sduction", and the results after the implementation of the project, which include an increase of 57.8 kg paddy per mu,an economization of 15 man-days per mu and a decrease of 10.6 Yuan per mu in production cost. It is obtained, based on the economic benefit analysis, that the ratio of investment in science and technology to benefit is 1:15.35, with an economic critical point 1:16.35. The procedures and methods are of value to popularize in the two-crop paddy areas. Some basic method about the mechanization of paddy field operations and the implementation of bumper harvest plan are also discussed.