The present invention relates to a compact case including an upper cover unit and a lower body for hermetically accommodating various types of cosmetics in which the upper cover unit and the lower body are combined by a pin. The lower body and the upper cover unit are separably combined by a pin for refilling, the lower body is hermetically sealed with a cut plate that can be cut at the top and with a bottom plate at the bottom after a cosmetic is put into the lower body, and the cut plate is cut and opened for use in a single motion by pulling a ring. Accordingly, the compact case is simply sealed and opened, so efficiency including economical efficiency is improved.