To provide a cosmetic tool for eyelashes for easily and beautifully making up eyelashes.

A brush section 3 comprising a stick-like body 9 and teeth of a comb 10 disposed at another end section of longitudinal direction is heated by a heat source means 4. The brush section 3 is heated by the heat source means 4 at a proper temperature for curling eyelashes, for example at 40°C to 60°C. The brush section 3 heated in this way is touched to the eyelashes. The eyelashes become a suitable condition for curling by touching to the brush section 3 and are curled arranging the eyelashes in mutually parallel by the teeth of the comb 10. The eyelashes are beautifully curled in this way.