To obtain an auxiliary tool for hair cut which is used for cutting hair of a child without making mistake and which can prevent the hair from dispersing after cutting the hair.

A tool has an adhesive agent to easily cut the hair and to treat the hair after cutting the hair. A pair of opposite pressing sections 1 and 2 are openable by a spring 4 and a hinge 3 that normally push for releasing. When the both pressing sections 1 and 2 are pressed holding, the hair, which is combed with the auxiliary tool for hair cut having a pair of adhesive agents 5 and 6 that are respectively detachably assembled to opposing surfaces of a clip of which pressing rod sections are formed to close, is cut in a state that the hair is pressed holding by the adhesive agents 5 and 6.