Semiotics is the refined and extroverted expression of the concrete reality and spirit of the real world. Traditional diet is closely related to traditional Chinese philosophy,such as the influence of the classic works of Confucianism,the "homology of medicine and food" in traditional Chinese medicine culture,and the "unity of heaven and man" and "Taoism and nature" in Taoism on diet culture. As a kind of cultural symbol with the attributes of emotional belonging,artistic aesthetics and spiritual pursuit,traditional food culture has the significance of simplifying the design language of cultural identity. The combination of Chinese traditional culture philosophy and olfactory experience design will make the expanded traditional culture have bright long-term development prospects,and the innovative experience design will also be developed.