The scientific of risk index system is the premise for effective operation of risk evaluation model. In order to establish the index system for risk evaluation model, the paper proposed a set of index system framework based on analytic hierarchy process. By introducing the modern project management thought of “three controls and two managements”, five major criterion layers were created. Moreover, expert group was organized for each criterion layer. By using two-stage research routes, sub-criterion layers and index systems were established for five criterion layers respectively. The new risk index system has been applied in a slope engineering construction.