The mechanization of rice production in China hasexperienced a comparatively long and an undulatingprocess.The full-scale making of mechanization ofirrigated rice cropping regions was started at the mid1960’s,later than that of upland cropping and its av- The mechanization of rice production in China hasexperienced a comparatively long and an undulatingprocess.The full-scale making of mechanization ofirrigated rice cropping regions was started at the mid1960’s, later than that of upland cropping and its av-