The annual output is 4 million tons to 4.7 million tons, with an output value of more than 25 billion yuan. The provinces and cities along the Yangtze River are rich in rapeseed, which is not only the main producing area of rapeseed in China, but also the main processing area of rapeseed oil in China. Rapeseed oil processing accounts for more than 70% of the national total. China is also the largest consumer of rapeseed oil, with an annual consumption of 4.3 million tons to 4.8 million tons. The main consumption areas are concentrated in the Yangtze River basin, including Sichuan, Chongqing, Hubei, Hunan, Anhui, Jiangsu, Guizhou and other provinces and cities.