With the form of the "*" word model road network truss of shaan'xi province,the transportation efficiency of shaan'xi province highway network must be improved in order to according to the development step of road network.Herein it,the paper analyzed the competitive ability change of passenger transport forward and after several typical highway route be open to traffic,via contrasting highway transport to general-road transport,to railway transport,to aviation transport,and substantiated that the developing shaan'xi province highway network has enhanced the competitive ability of road passenger transport in the area.In the end,the paper put forward some suggestion in policy with the status transportation efficiency of shaan'xi province highway network,for the sake of more enhancing the competitive ability of road passenger transport in the area.