The utility model provides a scale distance dotting machine which comprises a base, a positioning device, a transmission mechanism, a dotting mechanism and a controller, the positioning device, the transmission mechanism, the dotting mechanism and the controller are fixed on the base, and the positioning device is used for fixing a product to be subjected to scale distance dotting. The transmission mechanism is of a double-track structure, the transmission direction of the transmission mechanism is parallel to the extending direction of the positioning device, the dotting mechanism is in transmission connection with the transmission mechanism, and the transmission mechanism is electrically connected with the controller. According to the scale distance dotting machine, the change switch isarranged on the double-rail lead screw to achieve change of the dotting distance, the supporting rod is used for supporting the dotting mechanism, and the dotting precision is prevented from being affected by vibration or shaking of the dotting mechanism in the dotting process; the pressure adjusting assembly is arranged on the punching rod to achieve adjustment of the dotting force, and it is guaranteed that dotting marks are clear. In addition, the dotting process of the scale distance dotting machine is automatically controlled by the controller, manual participation is reduced, operation is convenient, and control is accurate.