Ankylosing spondytitis is a kind of arthropathy of rheumatic immune disease. The pathogenesis of ankylosing spondytitis is not very ctear in current medicat research. Because of the recurrence of the disease and the prolongation of the disease, the quality of tife of the patients has been seriously affected. Traditional Chinese medicine has tong known its etiotogy and pathogenesis, and it is very effective in ctinicat treatment. Based on the theory of traditional Chinese medicine and modern physicians' understanding of its etiotogy and pathogenesis, and starting from the function and characteristics of tiver and kidney, this paper explores the basis of treating ankylosing spondytitis from tiver and kidney, with a view to providing new ideas for the ctinicat treatment of ankylosing spondytitis.