Luochuan County, Yan 'an City is known as the "hometown of apples". The apples produced here are famous for their good color, fragrance and taste. It has the advantages of excellent quality, beautiful fruit shape, large and uniform head, clean fruit surface, bright color, crisp and dense meat, high sugar content (2% ~ 3% higher than that of foreign apples), sweet and delicious, moderate hardness and storage resistance (it can be stored in soil holes until April ~ May of the following year), ranking first among similar apples in China, enjoying a good reputation in the world and at home and abroad. The county is listed as one of the important production bases for apple export in China, with an annual sales volume of several hundred million kilograms. Luochuan apples are the best in the world. Luochuan apples are mainly produced in Weibei Loess Plateau, with Luochuan as the center in Yan 'an, Tongchuan, Chunhua, Liquan and Baishui. Orchards spread thousands of miles.