Abstract: For researching the characteristic and simple and high-effective (mechanical sowing and reaping method) cultivation technique, the field density and sowing test data of‘Zhenyou 89’ , combined with a large number of practices on mechanical sowing and reaping were studied. The important point of the high yield technique was reasonable arrangement of stubbles, early sowing time (seeding time on September 20th to 25th), training full stand strong seedling, ensure planting density (seeding rate by 3.75-4.5 kg/hm², density of 225- 375 thousand of strains/hm²), rational application of fertilizer (compound fertilizer 600 kg/hm², containing N:P: K=16:16:16, urea 270 kg/hm², boric fertilizer 15 kg/hm²), scientific control of weeds, timely prevention and control of plant diseases and insect pests, suitable harvest time, etc. Mechanical sowing and reaping was simply and high-effectively applied to the production of rapeseed, and could reduce production cost and enhance the international competitiveness.