The invention provides a drilling gun capable of bending. A limiting tube is fixedly connected with a connecting tube and a fixing tube is hinged to the connecting tube by a hinge pin; a shell body ofa motor is connected with the fixing tube by a connecting frame and a drilling bit is detachably connected with the end, which is far away from the motor, of a fixing sleeve; a main handle is connected with the connecting tube and an assisting handle is connected with the fixing tube; one end of a connecting rod is connected with a tube body and the other end of the connecting rod is arranged inparallel to the axis of the tube body and points to the end, which is connected with the fixing sleeve, of the tube body; an air blower is rotatablely connected with the connecting rod. According to the drilling gun capable of bending, the drilling gun can be enabled to work at a tight space by bending of the drilling gun, so that the range of application of the drilling gun can be improved.