Zhejiang cuisine mainly consists of four schools of Hangzhou, Ningbo, Shaoxing, Wenzhou, each with strong local characteristics, and West Lake Vinegar Fish is a famous dish in Hangzhou cuisine. West Lake Vinegar Fish, also known as Shuju and Sister-in-law Chuanzhen, is a traditional local flavor dish in Hangzhou, Zhejiang Province. According to legend, in the Song Dynasty, uncle and sister-in-law for brother and husband to avenge the repeated obstruction and experience the sweet and sour taste of life, the creation of this dish.