The present invention relates to a tip unit for a skin washing device, and a skin washing device equipped with the tip unit. More specifically, the tip unit for a skin washing device comprises: an outer case which is in the shape of a tube having one open side and an inner hollow part, and includes a suction hole, a drug hole, and a flange unit, wherein the suction hole is formed in a length direction thereof in one side region on a side portion thereof, the drug hole is formed in the other side region thereof, and the flange unit includes a concave portion being concave in one side direction； an inner case which includes a first inner case and a second inner case, wherein the first inner case is in the shape of a tube having a drug flow unit therein and has an outer surface spaced apart from an inner surface of the outer case to form an air flow portion at the same time of being inserted in one side portion of the inner hollow part of the outer case, and the second inner case is in the shape of a tube having a drug flow unit therein, has an outer surface having a size capable of closing the inner hollow part of the outer case by being inserted in the other side region of the hollow part of the outer case, and has a drug injection hole communicated with the drug hole； and a drug discharge cap which is installed in the drug flow unit of the first inner case, includes a space unit having one open side, and includes at least one drug discharge groove adapted for allowing a drug supplied to the drug flow unit through the drug injection hole to be discharged to one side.본 발명은 피부세척장치용 팁유닛 및 그 팁유닛이 장착된 피부세척장치에 대한 것이다. 보다 상세하게는 일측이 개구됨과 동시에 내부 중공부가 구비된 관 형태로 이루어지며 길이방향을 따라 측부로 일측영역에 구비되는 흡입구멍과 타측영역에 구비되는 약액구멍이 형성되고, 일측면에는 일측방향으로 볼록한 볼록부를 갖는 플랜지부가 구비된 외부케이스； 내부에 약액유동부가 구비된 관 형태로 이루어지되 상기 외부케이스의 내부중공부 일측영역에 삽입됨과 동시에 외면이 상기 외부케이스의 내면과 특정간격 이격되어 공기유로부가 형성되도록 구비된 제1내부케이스와, 상기 제1내부케이스의 유동부와 연통된 약액유동부가 구비되는 관형태로 이루어지되 상기 외부케이스의 중공부 타측영역에 삽입됨과 동시에 외면이 상기 외부케이스의 내부중공부를 폐쇄시키는 크기를 가지며
