The present invention relates to an apparatus and system for selling draft beer equipped with a payment system, and more specifically, to set the beer temperature to an appropriate temperature, and install an automatic washing machine and an ultraviolet sterilizing lamp inside to clean bacteria and at the same time Not only does it provide hygienic beer by preventing the propagation of children, but also a payment unit that restricts purchases by resident registration verification for minors is attached to the main body for convenient use.Draft beer storage is installed in a drawer so that anyone can easily use beer kegs and carbon dioxide gas kegs. Because it can be exchanged, it is possible to exchange conveniently, and an opening/closing switch is installed to open and close the beer injection nozzle and move the beer injection nozzle to the desired part of the beer cup, making it possible to arbitrarily control the generation of bubbles. The present invention relates to an apparatus and system for selling draft beer provided with a payment system that is easy to use because the occupied space is small and the volume is small.