The invented tractive method is a nonsynchronizing stress tangential component tractive method. By use of stress tangential component device, through every locomotive autonomous speed governing, every train follows mutually and synchroniously and at the same time, can reduce the tension or compression stress of couping at the coupling point of train to make the sum of bearing force of coupling maintain at permissible range throughout. The train with total weight reaching serval ten-thousand tons can use ordinary coupling for operation and can overcome effectively the problems of idle motion and wear of wheel and rail and at the same time make the shock maintain in the operation level of single train, so the speed of train can be high. According to the different conditions of different lines, there are three operation schemes for selection to implement this invention.