The present invention discloses a hair styler for forming hair waves. The disclosed hair styler comprises: a main body which is formed of a pipe with the open top and bottom, wherein hair is accommodated by being inputted through the open top thereof, and is provided with a pipe expanding unit with an expanded diameter at the top end unit in order to facilitate input of the hair; a handle unit which is extended and formed in the lower part of the main body, is formed in the same axis as the main body, and is formed to be gripped by a user; a rotary brush unit which is installed on the outer circumferential surface of the lower part of the main body and rotates inside the main body to rotate the hair accommodated inside the main body in order to be twisted; a blowing unit which is formed in the main body, sprays air inside the main body from top to bottom in order to guide downwardly and dry the hair accommodated inside the main body; a heat wire which is embedded in the main body in order to form the inner space of the main body in a hot temperature state; a hair essence spraying unit which is installed in the main body in order to be positioned in the upper part of the rotary brush unit and is installed to rotate to the main body in order to spray hair essence for oily hair or dry hair to the hair accommodated inside the main body; and a cutting unit which is installed in the center at the bottom end of the main body in order to cut the bottom end of the hair twisted inside the main body, and has the handle unit formed on the bottom thereof. Therefore, the hair styler for forming hair waves can have an improved structure.헤어웨이브 형성용 미용기기가 개시된다. 개시된 헤어웨이브 형성용 미용기기는 상하가 개방된 관체로 이루어지고, 개방된 상부를 통해 모발이 투입되어 내부에 모발이 수용되며, 상단부는 상기 모발의 투입이 용이하도록 직경이 확장되는 확관부를 구비하는 본체; 상기 본체의 하부에 연장형성되고, 상기 본체와 동일축상에 형성되며 사용자가 파지하도록 형성되는 손잡이부; 상기 본체의 하부 외주면에 설치되어, 상기 본체 내부에서 회전하면서 상기 본체 내부에 수용된 모발을 회전시켜 모발이 꼬여지도록 하는 회전브러시유닛; 상기 본체에 형성되어 상기 본체 내부의 상측에서 하방으로 공기를 분사하여 상기 본체 내부에 수용된 모발을 하측으로 안내하면