Abstract: Agriculture is related to national food security, resource security and ecological security．As a province with large population and agriculture in China, how to improve level of sustainable agricultural development in Sichuan Province has become a concern of agricultural researchers．Data of Sichuan Province from 2010 to 2020 through entropy method was analyzed．It concluded that from 2004 to 2010, comprehensive score for sustainable development of agriculture in Sichuan Province has been decreasing year by year, reaching a minimum of 0.035 in 2010．From 2010 to 2020, sustainable development level of agriculture in Sichuan Province was on the rise, and increase was increasing year by year．After assigning values using entropy weight method, it was found that amount of fertilizer applied and amount of plastic film used in agriculture have a relatively significant impact on sustainable development level of agriculture in Sichuan Province．Reducing them could promote sustainable agricultural development．