Monks can't eat meat, which originated from the rule of Xiao Yan in Liang Wudi in the Southern Dynasties. In 5 1 1 year, Xiao Yan wrote an article, Duanjiurou, which issued an imperial edict to the whole country, explicitly forbidding monks and nuns in the world to drink and eat meat, and forcing all monks to swear before the Buddha that they would "stop drinking and eating meat forever". From then on, it was clearly stipulated that monks should not eat meat, and it was written into the precepts of Buddhism in China, which has continued with history to this day. Before the Northern and Southern Dynasties, monks could eat meat. In ancient Buddhism, monks were not forbidden to eat meat, but only three clean meats were allowed, and five spices were forbidden. The so-called "five spices" are five kinds of foods with strong smells, namely garlic, onion, planting onion, onion and apricot koji.