Abstract: For the seal welding of thin walled stainless steel tube,a set of laser welding equipment was designed,which is mainly composed of a driving mechanism,a turntable,pallet,feeding mechanism,material detection module,detection module before welding and laser welding components. Multi station running fixture can realize the automatic inspection,assembly,laser welding and other processes simultaneously,and increase production efficiency. The real production test shows that the finished product rate is 100%,the daily output of 3 000 pieces,and the developed equipment meets the requirements on welding quality and efficiency.