The invention discloses a portable beating type drilling tool which comprises an outer shell. A return spring is arranged in the outer shell. A rotating body is arranged on one side of the return spring. A drill bit fixing seat is arranged at the front end of the rotating body. The return spring is in an olive shape with the two ends smaller than the middle and is placed in an inner barrel. The two ends of the return spring are not fixedly connected with the inner wall of the outer shell and the rotating body. The fixing seat is used for achieving fixing and replacement on drill bits of different diameters. One end of a drill bit is fixed to the fixing seat, and the other end of the drill bit is arranged on the outer side of the outer shell. An outer screw sliding groove is formed outsidethe rotating body, and an inner screw sliding groove is formed in the inner wall of the outer shell. A limiting cover is arranged on the outer side of the drill bit, and a threaded groove is formed inthe inner wall of the limiting cover. According to the portable beating type drilling tool, through the arrangement of the outer shell, the rotating body, the inner screw sliding groove, the outer screw sliding groove, the return spring and the drill bit, the end, away from the drill bit, of the outer shell is beaten, the drill bit rotates under the action of the outer screw sliding groove in theouter side of the rotating body and the inner screw sliding groove in the outer shell to drill holes in a wall face, the return spring restores, the drill bit is pushed to move, the outer screw sliding groove and the inner screw sliding groove act together to enable the drill bit to continue to rotate in the return process, secondary drilling is carried out on the wall face, and the drill bit isin contact with the wall face all the time; and the whole drilling tool needs no electric power, the trouble of power supply is reduced, cost is low, living expenses are reduced, and carrying is convenient.