Abstract: In traditional metal sheet processing scenarios, the use of die cutting for blanking is a relatively widespread method. However, due to reasons such as long design and manufacturing cycles and high costs, stamping dies are only suitable for limited scenarios like large batch sizes or high-value-added products. For scenarios involving small batch sizes and complex workpiece processing, robot-laser-cutting with high precision and flexibility has gradually become the optimal solution. Traditional manual teaching programming for robots is time-consuming and less precise, leading to an increasing number of users favoring offline programming technology for robots. Nevertheless, offline programming technology for robots has its own constraints: it cannot operate without the product's 3D model、 offline programming data still require tool calibration after being imported into the robot、 and the actual cutting effects on workpieces may vary due to the overall layout's precision. As a result, offline programming technology has not yet fully replaced traditional manual teaching programming. This article will combine personal experiences and projects to elaborate on the advantages of using offline programming in robot-laser-cutting applications, the difficulties and key factors involved, as well as the current state of the industry.