As a myth in the catering industry and the leading hot pot restaurant in China, Haidilao has always been known for its "service". But such a service can not be formed overnight, and it is impossible to rely solely on directive tasks to drive employees, behind which there must be a unique corporate culture as a strong support. The author will use the "Five Elements of Corporate Culture" proposed by Terrence E. Deal and Allan A. Kennedy as a framework to study the corporate culture of Haidilao in depth and comprehensively. With the background of economic globalization, Haidilao has established a corporate strategy of rapid expansion both at home and abroad in recent years, so in the process of this change in external environment and corporate strategy, the adaptability of Haidilao's original corporate culture and the corresponding cultural changes have become the focus of research. The author will use "the Competing Values Framework" proposed by Kim S. Cameron and Robert E. Quinn to diagnose the corporate culture of Haidilao and suggest changes.