Corn wine is also called Gaifatang. Zajiu is a kind of wine that Qiang people drink on important festivals such as harvest celebration, wedding, red and white weddings, sacrifice to gods and mountain gods, pray for the prosperity of people and livestock, good harvest, local peace, lush forests, and harmony between man and nature. They sit around the bonfire and drink self-made pure Qiangshan corn wine (zajiu), singing and dancing to release the fatigue of the day and welcome the dawn of the next day. Corn wine is an indispensable drink in the life of Qiang people. Qiang people drink it with three meals a day. Inability is to go up the mountain to chop wood and go to the fields to work. Drinking in moderation, one is to refresh and cheer; the other is to keep fit and activate blood circulation in winter, so as to dispel cold and warm the body, which is beneficial to both men and women. It is a mysterious brewing method of Qiang people, mostly in bamboo tubes and earthenware jars. The beautiful Qiang songs and exquisite literary and artistic performances on the celebration table of Qiang people make people intoxicated with their enthusiasm and boldness. Corn wine originated from the primitive Qiang traditional brewing of the ancient Qiang people. It reflects the ancient Qiang people's ideas of submission to nature, health, mutual communication, and unity. It has a history of thousands of years. Beichuan Macao Winery has a history of more than 300 years. It is not separated from agricultural production. Generally, it has earth stoves, wooden zhen, clay jars, cool mats, bran koji, fermentation pools, cool whisks, and wooden barrel distillers in their own homes. The classic corn wine that reflects the core connotation of Qiang culture has become the main material and important evidence for modern people to study the development of Qiang historical wine culture. The epics and legendary stories contained in the classic corn wine reflect the history and culture of the Qiang people. It has a high literary value. The factors such as young people going out to work and the traditional ritual emotions have weakened the dissemination and continuation of Qiang traditional culture. In addition, the artists of traditional craft winemaking have been lost one after another, and their inheritance is facing a crisis and needs to be protected urgently. Information source: Mianyang Intangible Cultural Heritage Protection Center Information source: Mianyang Intangible Cultural Heritage Protection Center