The invention discloses an oil-water immersion type copper wire drawing device which comprises drawing copper wires, a diamond drawing cone, a drawing mold base, a lubricant cavity, a drawing box bodyand a water soaking cavity, wherein the drawing mold base is installed inside the drawing box body; a sintering block is assembled inside the drawing mold base; the diamond drawing cone is inlaid inthe middle of the sintering block; a cover plate is arranged at the rear end of the sintering block, and the cover plate is fixed on the drawing mold base through bolts; drawing mold holes are formedin the middles of the diamond drawing cone, the sintering block, the drawing mold base and the cover plate; the drawing copper wires are arranged in the drawing mold holes in a penetrating mode; the drawing mold base divides the interior of the drawing box body into the lubricant cavity and the water soaking cavity, and a good lubricating effect is achieved; and when the drawing copper wires in avariable-diameter taper hole and in the drawing mold holes are drawn, the problems of breakage, wire drawing burrs and scratches are avoided, the wire drawing quality is improved, good heat absorptionand cooling functions are achieved, so that the cooling effect on the drawing copper wires can be improved, and the drawing operation for the drawing copper wires can be facilitated.