A Dream of Red Mansions, as a classic literary work, not only embodies the traditional culture of China, but also shows the important position of tea culture in its food culture. Tea in a dream of red mansions is not only a drink, but also a culture. Therefore, the reason why I want to write the tea culture thesis of A Dream of Red Mansions is to study the status, significance and influence of tea in A Dream of Red Mansions, and to explore the development, evolution and inheritance of tea culture in China history, as well as its enlightenment and reference for modern people. At the same time, tea culture is also a lifestyle and spiritual culture. By studying tea culture, we can reflect the life style and values of ancient society, and also have some enlightenment to the spiritual life of modern people. Therefore, choosing the tea culture in A Dream of Red Mansions as the topic of this paper can not only reflect the position and value of tea culture in China traditional culture, but also actively explore the development and reference of modern people to tea culture.