Abstract: Proposed is a brush for applying makeup. The brush according to the present disclosure includes: a large brush (100); a receiving space (140) formed along a length direction of the large brush (100) at a position corresponding to or eccentric from a center of the large brush (100) so that the receiving space (140) is open at upper and lower ends thereof and at a side of a circumference thereof; and a small brush (200) configured to be coupled to the large brush (100) in a direction from top to bottom of the receiving space (140) so as to coincide with a disposition direction of the large brush (100) so that the small brush (200) is used in conjunction with the large brush (100) as one integrated brush (300), or separated from the large brush (100) in a direction from bottom to top thereof and selectively used.