Abstract: Developing circular agriculture was an important way to promote agricultural modernization. Through the evaluation and analysis of the development efficiency of circular agriculture in Mianyang city of Sichuan province, it can effectively promote the development of local circular agriculture and realize green development while realizing the transformation of agricultural modernization. The CCR model of DEA methods was used to evaluate the development efficiency of circular agriculture in Mianyang city. The results showed that in 2013, 2014, 2015 and 2017, the index efficiency of circular agriculture in Mianyang city reached the relative optimal, and DEA was effective; but in 2016, the index efficiency did not reach the optimal, and DEA was invalid. Finally, some suggestions on how to adjust the development efficiency of circular agriculture in Mianyang city were put forward.

Key words: DEA, circular agriculture, development efficiency, Mianyang city in Sichuan province