Fiber laser cutting machine, as a device that plays an important role in the field of sheet metal cutting, is a high-tech application system integrating light, machine and electricity. Each of its cutting processes embodies the intentions of mechanical artisans, and their efforts allow fiber laser cutting machines to be applied stably, safely, and efficiently. Among them, the automatic edge-finding cutting process reflects the advantages like a larger and faster production, better quality and material-saving of fiber laser cutting machines. The automatic edge-finding cutting process of the fiber laser cutting machine means that the cutting machine can track and compensate the metal sheet in the whole process automatically under the cooperation of the camera positioning vision system and the computer software to ensure accurate cutting. If the sheet is skewed on the table, it may cause the waste of raw material during cutting. However, when the cutting head can sense the angle of inclination and the origin of the sheet, the cutting process can be adjusted to suit the angle and the position of the sheet to avoid the waste of raw materials. After the automatic edge-finding function is turned on, the cutting head can start from a specified point, and then measure several points on the two vertical sides of the sheet automatically, and calculate the angle of inclination of the sheet and the origin point of the sheet material to complete the cutting task automatically. It is well known that the workpiece on the workbench weighs hundreds of kilograms, so it is not easy to adjust and move it, and the use of the automatic edge-finding function of the fiber laser cutting machine can save the time of adjusting the workpiece and improve the efficiency of the machine. With the continuous upgrading of science and technology, laser technology has promoted the transformation of CNC laser cutting machines from a single function to a multifunctional device, from a single industry application to an application in all walks of life, the scope continues to expand, cutting efficiency and quality are improved rapidly to meet the needs of many users.