To consider the influence of saddle accurately on the cable system of self?anchored suspension bridge, a refined simulation method of the saddle is presented. Through establishing finite element ( FE) model of the whole bridge, the comparison analysis of calculation accuracy between refined model and analytical procedures is implemented. Meanwhile, the influence of the degree of refined saddle simulation on curve of main cable is studied. The results show that the proposed refined method of saddle model can accurately reflect the stress status of the cable system. The computation results agree well with analytical results. It is not necessary to refine the contact point;the saddle cannot be instead of analytical crossover point due to the significant influence of saddle on calculation result of main cable curve.