The Qin Dynasty was the first dynasty to unify China, and Qin cuisine is one of the oldest in China. After the fall of Qin Dynasty, Qin cuisine was continued and developed in the Western Han Dynasty, Sui Dynasty and Tang Dynasty.The practices of Qin dish includes quich-boil, quickly cooking in hot oil, burning, simmer, steam, etc., of which, burning and steam are given priority to, and the method of “quickly cooking in hot oil” is beyond the reach of any cuisine. The mouthfeel of Qin cuisine is to retain freshness and nutrition; The practice of Qin cuisine technology is "flying fire" as a must. "Flying fire" means ripening a dish as it rolls through the air. For "flying fire", only a pot can make it into a dish, after thickened sauce, it can be eaten, which is mellow, fresh and delicious.Qin cuisine mainly consists of official cuisine, commercial cuisine, marketplace cuisine, folk cuisine and ethnic minority cuisine. Official dishes include the official map, Eight Diagrams fish maw, pork joInt with a handle, etc. Commercial dishes mainly include stewed shredded squid, Shark’s Fin with Minced Chicken, golden coin hair-like seaweed and so on; Marketplace dishes include roast duck, roast suckling pig, calabash chicken, Fish with White Soup and so on; Folk dishes include Hanzhong smoked chicken, Fried toon fish, fried white meat, sour and spicy shredded tripe soup, etc.; Minority dishes include cooked beef tendon, fried beef tenderloin and so on.