A sliding color cosmetic case comprising: a lower sliding member which is a rectangular box-shaped member whose top is open and bottom is closed and having left, right, and one side walls (11, 12, and 13) and a sliding side wall located on the other side facing one side wall in such a manner as to be higher than the left, right, and one side walls (11, 12, and 13); a color cosmetic case which is a rectangular member located at the insides of the left, right, and one side walls (11, 12 and 13) of the lower sliding member and having spaces partitioned on top thereof to accommodate color cosmetic trays therein and hinge coupling portions formed on the sides toward the sliding side wall; an inclined protrusion member which is a rectangular member located between the sliding side wall of the lower sliding member and the color cosmetic case in such a manner as to be slantly coupled to the color cosmetic case through a hinge shaft and a spring fitted to the hinge coupling portions of the color cosmetic case and having a mirror attached to top thereof and an application tip storing slit formed on the side surface facing the hinge coupling portions to accommodate an application tip therein; and a sliding cover member which is a rectangular box-shaped member adapted to slidingly cover the lower sliding member, the color cosmetic case located in the lower sliding member, and the inclined protrusion member in such a manner as to allow a front surface as a sliding insertion surface fitted to one side wall of the lower sliding member to be open and to allow left, right, top, underside, and rear surfaces (42, 43, 44, 45, and 46) to be closed. a lower sliding member which is a rectangular box-shaped member whose top is open and bottom is closed and having left, right, and one side walls (11, 12, and 13) and a sliding side wall located on the other side facing one side wall in such a manner as to be higher than the left, right, and one side walls (11, 12, and 13); a color cosmetic case which is a rectangular member located at the insides of the left, right, and one side walls (11, 12 and 13) of the lower sliding member and having spaces partitioned on top thereof to accommodate color cosmetic trays therein and hinge coupling portions formed on the sides toward the sliding side wall; an inclined protrusion member which is a rectangular member located between the sliding side wall of the lower sliding member and the color cosmetic case in such a manner as to be slantly coupled to the color cosmetic case through a hinge shaft and a spring fitted to the hinge coupling portions of the color cosmetic case and having a mirror attached to top thereof and an application tip storing slit formed on the side surface facing the hinge coupling portions to accommodate an application tip therein; and a sliding cover member which is a rectangular box-shaped member adapted to slidingly cover the lower sliding member, the color cosmetic case located in the lower sliding member, and the inclined protrusion member in such a manner as to allow a front surface as a sliding insertion surface fitted to one side wall of the lower sliding member to be open and to allow left, right, top, underside, and rear surfaces (42, 43, 44, 45, and 46) to be closed.