PROBLEM TO BE SOLVED: To provide a tool for measuring the length of eyelash.SOLUTION: A tool 1 for measuring the length of eyelash comprises a grip part 2 and a measurement part 3 for measuring the length of eyelash. The measurement part has a curved part 4 and scale lines 5 with a position apart from the curved part by a predetermined length, as a base point.SELECTED DRAWING: Figure 1