The present invention relates to an oil production apparatus, and more particularly, to an oil production apparatus capable of cooling grains more efficiently in a process of roasting and cooling the grains to produce vegetable oil. The oil producing apparatus according to the present invention comprises: a heating pot provided with a cylindrical shape having a flat bottom surface and a circular inner periphery, an opening for selectively shielding one side of the inner periphery, A pot cover for selectively shielding the upper end of the heating pot to prevent the heat inside the heating pot from escaping to the outside and being lost； A rotating shaft projecting upward from a virtual center point of the bottom surface of the heating pot and rotated by receiving driving force from the outside； A rotary plate which is provided as a pair of bars extending from the rotary shaft to an inner circumferential surface of the heating pot and which is rotated by the rotary shaft to mix the grain contained in the heating pot； An air spraying unit provided at one side of the inner circumference of the heating pot and spraying compressed air to the lower end of the central axis to prevent the grains from collecting on the central axis and burning； A recovering body which is provided at a position adjacent to the opening of the heating pot and has a bottom surface formed in a net shape, for recovering the roasted grain discharged through the opening； A cooling case which is provided as a frame for supporting the recoverable body and cools the roasted grains recovered in the recoverable body； An oil extracting unit for extracting the vegetable oil by pressing the cooled grain； Wherein the cooling case has an intake cover provided on a side surface to selectively cover the intake hole and the intake hole, and the heat of the roasted grain contained in the collection body is sucked through the intake hole to produce the roasted grain A heat recovery member for cooling the heat reco
