Cosmetic case with sterilizer and puff

The present invention relates to a cosmetic case with a sterilizer and a puff, and more particularly, a cosmetic case including a puff and a sterilizer for sterilizing the puff. The cosmetic case with the sterilizer and the puff according to the present invention is capable of sterilizing the puff combined to the case body with the ultraviolet ray from the sterilizer to prevent bacterial contamination and proliferation of the puff, thereby improving sanitation and storage quality, and is capable of frequent sterilization before and after use of cosmetics, thereby improving user's convenience for sterilization of the puff.