To provide a machine for cutting-off and chamfering a pipe, which machine can cut off the pipe with high dimensional accuracy and further can chamfer the edge of the cut-off end.

The machine for cutting-off and chamfering the pipe comprises a power cutter tool 1 provided with a disk cutter 9 for carrying out the cutting-off and the chamfering of the pipe on the side of the front portion thereof, a positioning member 2 for receiving the outside peripheral surface of the pipe in the radial direction, and a supporting arm 3 for connecting the power cutter tool 1 and the positioning member 2, wherein one end of the supporting arm 3 is pivotally mounted on the tip end portion of the power cutter tool 1 in the axial direction such that the power cutter tool 1 can turn to the angles for carrying out the cutting-off and the chamfering of the pipe via an angle adjusting mechanism 4, and further the positioning member 2 is pivotally mounted to the other end arranged so as to cross the one end of the supporting arm 3, and the power cutter tool 1 can carry out the pivotal movement for the cutting-off and chamfering of the pipe.