To simply put on and remove a masking tape so as to heighten the effect of preventing a hair coloring dye from adhering to the skin by forming an adhesive part provided with an adhesive in one longitudinal edge part of a flexible tape-like material.

This hair coloring masking tape 1 is obtained by setting a flexible sheet such as kraft paper to a designated width to form a tape-like material 2, applying an adhesive 3 to the back of one edge part of the material 2, and taking a non-applied part as a dye catch part 5. A discontinuous slit 7 is provided in the material 2 between the adhesive part 4 and the dye catch part 5 to partition between the adhesive part 4 and the dye catch part 5. In consideration of winding the hair coloring masking tape 1 like a roll, it is desirable to attach a releasing paper 8 to the surface thereof for protecting the adhesive 3 or apply silicon for preventing adhesion to the surface 6 of the raw material where the adhesive 3 abuts in order to protect the adhesive.