The invention discloses a water-cooling type drilling machine tool which comprises a water-cooling box, a waste collection box and a drilling mechanism, wherein the drilling mechanism is arranged on a drill rack; the drill rack is fixedly arranged on a base; the water-cooling box is fixedly arranged on the base; an overflow plate and a baffle plate are welded in the water-cooling box at the upper end of a drilling workable plate; the interior of the water-cooling box at the upper end of the drilling workable plate is separated into a collection tank, a water cooling tank and a reservoir by virtue of the overflow plate and the baffle plate; and a drill clamping seat is welded on the drilling workable plate in the water cooling tank. According to the water-cooling type drilling machine tool disclosed by the invention, the cooling effect is good, the drilling quality is improved, water cyclically flows, the drilling cost is reduced, the drilling wastes are conveniently collected, the debris generated by drilling does not drift in air, and a clean and sanitary drilling operating environment is protected.