Disclosed are a drum trap and a food waste treatment apparatus using the same. In the drum trap according to the present invention and the food waste treatment apparatus using the same, the fetid vapor generated when drying food waste in the drying unit is introduced into the drum trap, condensed, and then discharged to the drain pipe side. In addition, the fetid vapor remaining without being condensed is re-introduced into the drying unit. That is, since the fetid vapor generated when drying the food waste does not leak out to the outside, no separate filter for removing the fetid smell contained in the vapor is required. Accordingly, production costs may be reduced.