To excellently apply a hair dyeing agent to the hair while crashing the bubbles of the hair dyeing agent.

Brush teeth 35 are erected on the lower surface 31a of a brush base 31 from a part near an end edge to a lower part (the upper side of the figure) and a hair-like body 55 is erected on the inner side. The length L1 of the hair-like body 55 is 0.8 1.2 fold of the length L2 of the brush teeth 35 and the maximum diameter of the outer periphery of the hair-like body 55 is less than 4.5 fold of the maximum diameter of the brush teeth 35. Thus, the hair dyeing agent is excellently applied to the hair while crashing the bubbles of the hair dyeing agent by the hairlike body 55.