A vegetable container for refrigerators, comprising: a case having an opening formed at a front thereof, the case being provided with a receiving space to receive objects to be stored defined therein; a drawer to hermetically seal an interior of the case; a discharge port formed through a bottom surface of the case to discharge water from the case; a negative pressure part to form vacuum in the case; and an opening and closing valve to open and close the discharge port, characterized in that the discharge port comprises: a water collection part depressed in a portion of the bottom surface of the case; and a discharge part to allow the water collection part to communicate with an outside of the case, wherein the opening and closing valve comprises: a plug to open and close the discharge part; a head located on the water collection part; a valve shaft connected between the plug and the head, the valve shaft extending through the discharge port; an elastic spring provided in the discharge port to apply elastic force to movement of the opening and closing valve; and a plurality of the introduction preventing pieces disposed around the head such that the introduction preventing pieces are spaced apart from each other, the introduction preventing pieces extending from the head to the water collection part, and wherein the introduction preventing pieces reciprocate in the water collection part during reciprocation of the opening and closing valve. a case having an opening formed at a front thereof, the case being provided with a receiving space to receive objects to be stored defined therein; a drawer to hermetically seal an interior of the case; a discharge port formed through a bottom surface of the case to discharge water from the case; a negative pressure part to form vacuum in the case; and an opening and closing valve to open and close the discharge port, characterized in that the discharge port comprises: a water collection part depressed in a portion of the bottom surface of the case; and a discharge part to allow the water collection part to communicate with an outside of the case, wherein the opening and closing valve comprises: a plug to open and close the discharge part; a head located on the water collection part; a valve shaft connected between the plug and the head, the valve shaft extending through the discharge port; an elastic spring provided in the discharge port to apply elastic force to movement of the opening and closing valve; and a plurality of the introduction preventing pieces disposed around the head such that the introduction preventing pieces are spaced apart from each other, the introduction preventing pieces extending from the head to the water collection part, and a water collection part depressed in a portion of the bottom surface of the case; and a discharge part to allow the water collection part to communicate with an outside of the case, wherein the opening and closing valve comprises: a plug to open and close the discharge part; a head located on the water collection part; a valve shaft connected between the plug and the head, the valve shaft extending through the discharge port; an elastic spring provided in the discharge port to apply elastic force to movement of the opening and closing valve; and a plurality of the introduction preventing pieces disposed around the head such that the introduction preventing pieces are spaced apart from each other, the introduction preventing pieces extending from the head to the water collection part, and