A mascara applicator comprising: an application stick that is attached to a cap sealing and covering an opening part of a mascara accommodation container and that can be accommodated in the mascara accommodation container; and an application body that is rotatably attached to a tip end of the application stick and that extends in a substantially axial direction of the application stick, characterized in that one side surface on a side opposite to a rotating direction of the application body is orthogonal to a plane including a rotation path, a ridge part that is formed by the one side surface and a side surface adjacent to the one side surface is used, while the application body is rotated and an axis of the application body is bent with respect to an axis of the application stick, so as to apply mascara, a bottomed outer cylindrical member is mounted at the tip end of the application stick, coaxially with the application stick, a ball joint that joins with a shaft body supporting the application body, an abutting member that abuts against a surface of the ball joint on the application stick side, and a spring that biases the abutting member against the ball joint are provided in a space that is formed by an inner surface of the outer cylindrical member and an outer surface of the application stick, the application body is made rotatable by allowing the shaft body supporting the application body to pierce through an insertion hole that is provided at a bottom of the outer cylindrical member, and plane parts (6a,9b) perpendicular to a turning axis of the ball joint that turns as a result of rotation of the application body are provided on an inner surface of the outer cylindrical member and on an outer surface of the ball joint, so as to limit the rotating direction of the application body by allowing the plane parts (6a,9b) to abut against each other. an application stick that is attached to a cap sealing and covering an opening part of a mascara accommodation container and that can be accommodated in the mascara accommodation container; and an application body that is rotatably attached to a tip end of the application stick and that extends in a substantially axial direction of the application stick, characterized in that one side surface on a side opposite to a rotating direction of the application body is orthogonal to a plane including a rotation path, a ridge part that is formed by the one side surface and a side surface adjacent to the one side surface is used, while the application body is rotated and an axis of the application body is bent with respect to an axis of the application stick, so as to apply mascara, a bottomed outer cylindrical member is mounted at the tip end of the application stick, coaxially with the application stick, a ball joint that joins with a shaft body supporting the application body, an abutting member that abuts against a surface of the ball joint on the application stick side, and a spring that biases the abutting member against the ball joint are provided in a space that is formed by an inner surface of the outer cylindrical member and an outer surface of the application stick, the application body is made rotatable by allowing the shaft body supporting the application body to pierce through an insertion hole that is provided at a bottom of the outer cylindrical member, and plane parts (6a,9b) perpendicular to a turning axis of the ball joint that turns as a result of rotation of the application body are provided on an inner surface of the outer cylindrical member and on an outer surface of the ball joint, so as to limit the rotating direction of the application body by allowing the plane parts (6a,9b) to abut against each other.