Abstract: In recent years, as the second largest county of rapeseed production in Yunnan province, Tengchong county had explored a plowing, two interplantings and three harvests in a year period high-efficiency cultivation technique under the support of Yunnan modern agriculture rapeseed industry technology system, and the technique had been extended, and the application of the technology has reached a certain scale. In this article, based on the introduction on extension and implementation of the efficient cultivation technique, the economic benefits in 2012 to 2014 were analyzed, and the results showed that its economic benefit was remarkable. Finally, the comprehensive benefits of the technology were evaluated.