Laser marking device

The invention discloses a laser marking device which comprises a conveying device, a laser device and a positioning and clamping structure. The conveying device, the laser device and the positioning and clamping structure are electrically connected with a controller. The positioning and clamping structure is opposite to the laser device. A workpiece is conveyed to the position where the laser device is located through the conveying device. The positioning and clamping structure is used for conducting positioning and clamping on the workpiece conveyed to the position where the laser device is located. The laser device is used for conducting laser marking treatment on the workpiece. By means of the laser marking device, automatic marking of the workpiece is achieved, and the machining efficiency of the workpiece is improved.