PURPOSE: A white board eraser is provided to increase detergency by conveniently discharging the alcoholic ingredients by the selection of a user since the alcoholic ingredient is housed in the eraser body. CONSTITUTION: A white board eraser includes an upper cover(100), a grip portion(200), a tube material, and a sponge unit(400). The upper cover has through-holes at both sides thereof and an accommodation part at the rear side thereof. The grip portion has an extension piece inserted into the through-holes and is elastically supported to the side of the upper cover and separate spring. The tube material has a discharge hose and alcohol is charged in the tube material. The sponge unit includes a first sponge(410) and a second sponge(420) separated from the first sponge by a separating panel.
