The cultivation of double-position teachers in Colleges and universities is a hot research topic at present. The evaluation system of double-position teachers‘ professional ability plays a guiding role. In order to better evaluate the professional ability of double-position teachers'' the paper designs a professional ability evaluation system for double-position teachers in colleges and universities based on analytic hierarchy process. Firstly， the paper analyses teachers''professional qualifications and evaluation factors and puts forward that teachers should have professional abilities in teaching， researching， social serving， internationalizing and practicing. Then the paper establishes a three-layered evaluating structure with 5 B level indicators and 16 C level indicators， which has under gone mathematical analysis based on analytic hierarchy process to determine the weights of each indicator. This study can provide new thoughts and methods for the evaluation and certification of college teachers.