A liquid applicator that stores an application liquid such as a fluid cosmetic or the like in a reservoir arranged in a barrel body, has an applying part that is fixed at a front end portion of the barrel body by means of a joint and a front barrel and brought into contact with a target site to apply the application liquid, and pushes out the application liquid stored in the reservoir toward the applying part by means of a delivering mechanism arranged in a rear of the barrel body, wherein the applying part is an overall cylindrical body that is formed of an elastic material and has an opening as an ejection port at a tip thereof and a communication hole at a rear end thereof for creating communication from the ejection port and indented/projected engaging portions (14d, 14e) formed on an inner peripheral side and an outer peripheral side in its rear end portion, the joint is an overall hollow cylindrical body having an application liquid passage hole formed therein and indented/projected engaging portions (30b, 30c) formed on an outer peripheral side in its forward part and its rearward part, the front barrel is an overall hollow cylindrical body having indented/projected engaging portions (28b, 28c) formed on an inner peripheral side in its forward part and its rearward part, and, in an assembled state where the joint forward part is inserted in the communication hole of the applying part rear end portion while an outer periphery of the applying part rear end portion is covered by the front barrel forward part and the front barrel rearward part is fixed to the barrel body front end portion, the indented/ projected engaging portion on the inner peripheral side of the applying part rear end portion is engaged with the indented/projected engaging portion on the outer peripheral side of the joint forward part, and the indented/ projected engaging portion on the outer peripheral side of the applying part rear end portion is engaged with the indented/projected engaging portion on the inner peripheral side of the front barrel forward part, at the same time the indented/projected engaging portion on the inner peripheral side of the front barrel rearward part is engaged with the indented/projected engaging portion on the outer peripheral side in the joint rearward part, whereby the applying part, joint and front barrel are formed so as to fix the applying part to the barrel body by means of the joint and the front barrel, characterized in that an indented/projected engaging portion is formed on an inner peripheral side of the front end portion of the barrel body while an indented/proj ected engaging portion is formed on an outer peripheral side of the front barrel rearward part, so that the indented/projected engaging portion on the inner peripheral side of the barrel body's front end portion is engaged with the indented/projected engaging portion on the outer peripheral side of the front barrel rearward part, whereby the applying part is fixed to the barrel body by means of the joint and the front barrel, and, in the assembled state, a first engagement position where the indented/projected engaging portion on the inner peripheral side of the barrel body's front end portion and the indented/projected engaging portion on the outer peripheral side of the front barrel rearward part are engaged with each other and a second engagement position where the indented/projected engaging portion on the inner peripheral side of the front barrel rearward part and the indented/projected engaging portion on the outer peripheral side of the joint rearward part are engaged with each other, are formed at the same position or at nearly the same position with respect to an axial direction.