Because China is the world's largest producer of cotton raw materials, accounting for about 3% of the world's annual output, and Xinjiang is the main cotton producing area in China, accounting for more than 2% of the world's production, especially its high-quality long-staple cotton, which is one of the best in the world. In this case, China will not only meet its own production and use, but also earn a large amount of imported foreign exchange every year, improving the overall economic benefits.