Sichuan's four pickled vegetables refer to Fuling mustard tuber, Sichuan sprouts, Sichuan winter vegetables, pickled kohlrabi and other traditional famous Han products. Among the four kinds of pickled vegetables, mustard tuber is one of the three famous pickled vegetables in the world, and the other three kinds are listed as the eight treasures of Sichuan materials by Xiong Sizhi (2003), which are considered as "rare, rare, expensive and precious" in Sichuan. These four kinds of pickles belong to vegetable pickles. According to the survey data of dietary nutrition of Shanghai residents in Dai and 2000, 47.22% never ate kimchi, 36.66% twice a week, 1.2% twice a day and 1. 165438 more than three times a day. 60% eat less than 50g a day, 36.84% eat 50 ~ 100g each time, and 5.67% eat more than 50g each time. According to this data, the number of people who eat pickles in China is about 680 million, and the annual consumption is about 6.5438+0.87 million tons. At present, the annual export volume of kimchi in China is nearly 200,000 tons, and the main varieties are pickled mustard tuber, radish strips and dried vegetable bamboo shoots. It can be seen that the kimchi market is huge. At present, mustard tuber is an important force leading the development of the four pickles, and the development of winter vegetables and sprouts has a strong momentum in recent years. Because the texture of pickled kohlrabi is similar to mustard tuber, there are fewer enterprises above designated size and their development status is relatively weak.