An apparatus for food waste treatment which efficiently treats sewage and odor generated from food wastes. The food waste treatment apparatus includes a body (10), a hopper (30) to put the food wastes into the body (10), a crusher (14) installed in the body (10) to crush the food wastes, an agitating container (42) having an agitator (38) therein and provided at a lower portion in the body (10) to agitate the food wastes, a sewage purifying tank (70) provided under the crusher (14) in the body (10) so as to purify sewage generated from the food wastes during a crushing operation of the crusher (14), and a drain pipe (73) extending from the sewage purifying tank (70), with a magnetic material (74) mounted on an end of the drain pipe (73) to secondarily purify the sewage drained from the sewage purifying tank (70) into a sewer pipe.