To provide a curling brush for making a plurality of curls of varied sizes by combinedly using adaptors.

This curling brush comprises a cylindrical body 2 which is fitted onto a brush bristle attached part 1a to cover the part 1a. An adaptor A is provided with notched parts 2b which make brush bristle trains 1c of the brush bristle attached part 1a stick out of the outer circumferential surface of the cylindrical body 2 in a state to be fitted onto the cylindrical body 2 at a specified interval in the circumferential direction an insertion body 3 as engaging means for detachably engaging the brush bristle attached part 1a with the cylindrical body 2 and an O-ring 4.