To provide a tube end correcting tool with which a tube end is corrected into a complete circle by smaller force than that of a conventional tool, and the chips are prevented from intruding into piping when performing chamfering at the same time as the correction to the complete circle.

The tool is for correcting the deformation of the tube end by rotationally inserting a shaft member which is projected in the axial direction of the rotation of a handle into the tube end. The shaft member has the followings on the same axis, that is: an annular swollen part which formes the maximum outside diameter of the shaft member, and is inserted into the tube end to correct the deformation; and a conical part which is located closer to the handle than the annular swollen part, and forms a conical surface internally touchable to a receiving port at the tube end. In the annular swollen part, the outside diameter is set to smaller than the inside diameter of the complete circle of the tube end. Further, the shaft member has two inclined planes from the tip to the annular swollen part, which are opposite each other. A cutting tool is provided at the conical part for chamfering the inner periphery of the receiving port of the tube end. The cutting tool for chamfering is an edge which is formed by notching a part of the conical part.