The custom of eating fish in Wenzhou has a long history and a profound tradition, which has been recorded in historical books for more than 2000 years. Biography of Historical Records of Huo Zhi records: "In Chu-Yue land, rice soup fish, fruits and vegetables are better than clams ..." It shows that people not only use fish as raw material to make fish soup, but also use "fruits and vegetables are better than clams" as table food. Zhang Hua's Natural History also said: "Southeastern people think that aquatic fish, clams, snails and clams are rare, but they don't feel fishy." Eating snakes and clams for a living is considered a first-class treasure. Later, after the creation and enrichment of Wenzhou people in past dynasties, the dietary custom based on fish was further developed and perfected, and gradually formed a kind of delicious food, which has been passed down to this day. Oucai is developed on the basis of Wenzhou folk long-term dietary customs. According to ancient records and investigations, it was formed in the Qing Dynasty. At that time, seafood dishes were very popular. After the founding of New China, with the efforts of chefs, the European cuisine was finally finalized in the 1980s, laying the foundation that "seafood is the mainstay: light oil and heavy knife work; The taste is fresh, light but not light; Pay attention to cooking, delicate and tender "local characteristics, and in the ranks of the province's cuisine, in the 1990s, Wenzhou Ou cuisine developed rapidly, and famous chefs came forth in large numbers, enjoying a good reputation at home and abroad as a national famous local cuisine. At present, there are more than 30 cooking methods of Ou cuisine, which has been listed as 46 famous dishes in China Cooking Book. At the same time, there are as many as 250 kinds of Oucai, forming a colorful Oucai.