The invention discloses a stamping mechanical arm convenient to operate at night. The stamping mechanical arm comprises a connecting line, an infrared range finder, a motor compartment and a control compartment. One side of the connecting line is provided with a linkage head, and the interior of the linkage head is fixedly provided with vibration damping cotton. The bottom of the infrared range finder is provided with an operation frame, and the bottom of the operation frame is fixedly provided with an illumination lamp. One side of the illumination lamp is provided with a non-slip sleeve. Thebottom of the operation frame is fixedly provided with a rotating drum. The outer surface of the motor compartment is provided with a silencer. Because the stamping mechanical arm convenient to operate at night is provided with a cooling fan, the illumination lamp and the vibration damping cotton, the temperatures of internal components can be lowered quickly during the operation of equipment, sothat the components can work normally. Moreover, illumination can be achieved at night, noise can be reduced when a machine operates, and the buffering performance and stability are improved. The stamping mechanical arm convenient to operate at night can be applied to different working conditions and bring better use prospects.