PURPOSE: To provide a hair dye application device with which dyeing of hair can easily be performed regardless of the site of the hair even in the case of dyeing the hair by oneself.

CONSTITUTION: The device is provided with a hair dye containing part 1 having a comb part 11, and a handle part 2 installed on the hair dye containing part 1 and having holding surfaces 21, 21. This holding part 21 is installed on the hair dye containing part 1 through an installation member 3, where this installation direction is changeable to be either of parallel disposition directions of plural comb teeth 12 forming the comb part 11, and the handle part 2 is fixed in such a way that the holding surfaces 21, 21 form a specified angle within a range of 30°-90° to a comb teeth surface 13 of the comb part 11.