Cold rice noodles, which originated from the traditional cuisine of the Han nationality in Guanzhong area of Shaanxi Province, are the general names of rolled noodles, rice noodles and stuffed noodles. Popular in northern China. It is a rare natural green pollution-free food. Due to different raw materials, production methods and regions, there are scalded rice (noodle) skin, rolled skin, baked skin and stuffed skin. The tastes are spicy, sweet and sour, spicy and so on. Cold rice noodles have a long history, which is said to have originated in the Qin Shihuang period and has a history of more than 2,000 years.