The study of monomodal language in discourse linguistics needs to be combined with other fields, such as visual, auditory and media studies. Diet is closely related to culture, and diet culture is an important part of the splendid culture of China, which is the concentrated expression of people's production and lifestyle for thousands of years. It reflects people’s attitude towards life, and also represents the spirit and temperament of a nation. Chinese culture is of long standing and well established, and cultures in different fields have their own particularities. The documentary a bite of China, as a multimodal discourse that includes text, pictures, music, photography and other art forms, is dedicated to introducing the rich and colorful food culture of China. The results lend support to relevance theory. In addition, this paper probes into the food culture of a bite of China from the perspectives of vision, taste and touch. Lastly, the result makes a brief analysis of the Chinese food culture attempt to explore how the film reflects Chinese food culture from different perspectives via certain modes. The study provides a new perspective for discourse analysis composed of multiple symbols and offers readers a framework for theoretical analysis of culture. It helps individuals to improve their ability to read multimodal discourses, and enables people to study symbolic resources in a more in-depth way.
