Snail powder originated in Tang Dynasty. Liu Zongyuan, a writer in the Tang Dynasty, was banished to Liuzhou, Guangxi, where he was stabbed. Because of his bad mood, acclimatization and lack of food and health, the doctor was at a loss. Zhou Wanfu, who was a chef in the government at that time, was also very anxious and didn't know what to do. One day, when he went to the Liujiang River to wash vegetables, he found some screws. He just made a bowl of snail powder carefully. Liu Zongyuan liked it very much and spread it widely.