The name Haidilao comes from Sichuan Mahjong, because Sichuan people's leisure activity after dinner is playing Mahjong, and the last peace card of Sichuan Mahjong is Haidilao. Haidilao's boss accidentally heard the word "Haidilao", so he named his hot pot restaurant "Haidilao".

Haidilao, founded in 1994, is a large-scale inter-provincial direct catering brand hot pot restaurant, specializing in Sichuan-style hot pot and integrating local hot pot characteristics. The full name is Sichuan Haidilao Catering Co., Ltd., and its founder is Zhang Yong. Haidilao is located in Jianyang, Beijing, Shanghai, Shenyang, Tianjin, Wuhan, Shijiazhuang, Xi 'an, Zhengzhou, Nanjing, Guangzhou, Hangzhou, Changsha and Shenzhen.