For the implementation of RNAV operation by using ground-based radio navigation system needs to select a reasonable station for navigation,a ground-based radio automatic station selection algorithm is proposed with multiple factors into consideration.Based on the information of RNAV airways and DME stations around between ZSSS and ZBAA,a comparative analysis is made of the automatic station selection algorithm considering multiple factors for RNAV airway design with the algorithm only considering a single factor,and the precision of selected DME/DME RNAV is verified.The experimental results show that the proposed multi-factor ground-based radio automatic station selection algorithm can effectively select better stations,avoid frequent switching of stations while switching to a better station in time,as well as ultimately achieving precise positioning of the aircraft,and satisfying the requirements of DME/DME RNAV performance.