Disclosed is an apparatus for cooling draft beer, which is installed to surround a beer storage bin to cool and maintain draft beer stored in the beer storage bin at an appropriate temperature. The disclosed apparatus for cooling draft beer comprises: a body unit having a shape to surround the beer storage bin, and including an inner cover which is in contact with an outer surface of the beer storage bin, an outer cover which forms a space between the inner cover and the outer cover in the outside of the inner cover, and an insulating material filled in the space between the inner cover and the outer cover; and a cooling water line installed in the body unit for cooling water which absorbs heat from draft beer stored in the beer storage bin to pass.
