To provide a correcting tool for tube end shape in the tube with which the deformation of the tube end part can easily be corrected without applying the force so much.

In the correcting tool for tube end shape of the tube, correcting the strain in the tube end part by inserting a correcting part in the tube end part, the correcting part is provided with a head part formed as the tapered state in the peripheral surface and a correcting body part having the maximum diameter part of almost the same diameter as the inner diameter of the tube to be corrected and also, a filling space for lubricator supplied at least on the surface of the head part is arranged in the inner part.