A continuously variable transmission with cone discs, comprising a pair of driving cone discs (1,2) mounted on a driving shaft and a pair of driven cone discs (20,21) mounted on a driven shaft, wherein the pair of driving cone discs and the pair of driven cone discs are respectively connected by splines, or ball keys, or any other manner that allow mutual axial sliding without mutual rotation of the two driven or driving cone discs (1,2,20,21); the driving cone discs and the driven cone discs clamp a flexible transmission element; and the pair of driving cone discs includes a driving movable cone disc and a driving pressing cone disc; the pair of driven cone discs (20, 21) includes a driven movable cone disc and a driven pressing cone disc; the back of the cone and flexible element pressing surface of at least one driving and driven pressing cone disc (1,21) between the driving and the driven pressing cone disc is provided with an end surface cam pressing mechanism; the end surface pressing mechanism comprises a driving cam and a driven cam which are axially and oppositely arranged, wherein the driving cam and a corresponding transmission shaft is connected by a spline, a ball key or a flat key, or any other manner allowing mutual axial sliding without mutual rotation, while the driven cam and a corresponding transmission shaft is connected by a spline, a ball key or a flat key, or any other manner allowing mutual axial sliding without mutual rotation; the driving and driven pressing cone disc of which the back is provided with the end surface cam pressing mechanism is connected with the corresponding transmission shaft in such way, which allows both mutual axial sliding within circa 1mm and mutual rotation; the pressing cone disc of which the back is not provided with an end surface cam pressing mechanism is fixedly connected with the corresponding transmission shaft (18,19); the continuously variable transmission with cone discs is provided with a ratio control mechanism which drives the transmission shafts of the driving movable cone disc and the driven movable cone disc to axially slide synchronously at the same speed and in the same direction, the ratio control mechanism comprises a ratio control shaft, as well as hollow screws (7, 23) and nuts (6, 22), which are respectively arranged on the backs of the driving movable cone disc and the driven movable cone disc; the driving shaft and the driven shaft are respectively arranged in the hollow screws; the hollow screws (7, 23) and the nuts (6, 22) are connected in the manners of ball screws or sliding screws; one of the hollow screw and the nut is connected with the driving movable cone disc through a bearing capable of bearing axial and radial loads, while the other of the hollow screw and the nut is connected with the driving transmission shaft through a bearing capable of bearing axial and radial loads; one of the hollow screw and the nut is connected with the driven movable cone disc through a bearing capable of bearing axial and radial loads, while the other of the hollow screw and the nut is connected with the driven transmission shaft through a bearing capable of bearing axial and radial loads; one of the hollow screw and the nut is connected with the transmission housing in the manner allowing axial sliding without mutual rotation, while the other of the hollow screw and the nut is connected with a ratio control shaft through a constant ratio transmission mechanism; one of the hollow screw and the nut is connected with the transmission housing in the manner allowing axial sliding without mutual rotation, while the other of the hollow screw and the nut is connected with the ratio control shaft through the constant ratio transmission mechanism, so that the conversion relationship i1 between the rotation of the ratio control shaft and the axial sliding of the driving movable cone disc is equal to the conversion relationship i2 between the rotation of the ratio control shaft and the axial sliding of the driven movable cone; characterized in that a needle bearing, which is arranged between the inner hole of the driving and driven pressing cone discs (1,21) and the driving and driven transmission shafts (18,19) accordingly, is mounted between the pressing cone disc (1,21) of which the back is provided with the end surface cam pressing mechanism and the corresponding transmission shaft (18,19).