The invention discloses a concrete forming device for construction. The concrete forming device comprises a baseplate, and the both sides of the top of the baseplate are welded with pillars; the top of each pillar is welded with a top plate, and the bottom of the top plate is fixedly provided with a sliding rail of which the bottom is slidably connected to a first electric telescopic rod; the bottom of the first electric telescopic rod is fixedly provided with a vibration exciter of which the bottom is fixedly connected to a pressing plate, and the bottom of the pressing plate is provided withan inner die; the position, corresponding to to the inner die, of the bottom of the baseplate is fixedly connected to a die cavity; the inner wall surface of the die cavity is fixedly connected to aliquid level gauge; and the both sides of the top of the baseplate are fixedly provided with second electric telescopic rods of which the front sides are fixedly connected to support rods. According to the concrete forming device, through the cooperative application of the liquid level gauge, the second electric telescopic rods, the support rods, an electronic ruler, a discharging pipe, a discharging branch pipe, a feeding pipe and a control box, the problems that the feeding efficiency of an existing concrete forming device can not be improved, resulting in low processing efficiency of concrete, are solved.