Radial drilling machine capable of efficiently positioning drilling depth

The utility model discloses a radial drilling machine capable of efficiently positioning drilling depth, which belongs to the technical field of radial drilling machines and comprises a radial drilling machine main body, a mounting plate is fixedly connected to the upper end of the radial drilling machine main body, and a driving device is arranged on the lower side of the mounting plate. The output end of the driving device is fixedly connected with a drill bit body, an adjusting mechanism is arranged between the driving device and the mounting plate, the outer end of the drill bit body is rotationally connected with a positioning plate, and a depth positioning mechanism is arranged between the radial drilling machine body and the positioning plate. When the drilling depth requirements of different workpieces are met, the depth positioning mechanism drives the marking plate to conduct adaptive depth adjustment along the scale lines, the drilling depth of the drill bit body is determined and limited in cooper