Atherosclerotic renal artery stenosis (ARAS) is a progressive disease with poor prognosis, and its risk factors are complex and various. Analysis of ARAS risk factors is helpful for early intervention, adjuvant diagnosis and therapy, and improving prognosis. Analytic hierarchy process (AHP) is a kind of multi decision analysis method, which is widely used in medical field. In this paper, firstly, the risk factors of ARAS are briefly introduced, and the basic principles of AHP are summarized. This paper focuses on the process of constructing ARAS risk factors prediction model based on AHP, and discusses the significance of AHP application in clinical field.