This paper discusses the design of laser welding equipment and how to verify the setting of welding parameters through experiments to ensure that the welding effect meets the expected standards. We have conducted in-depth research on laser welding technology for SFP Cage and solved the problem of welding between different materials. In addition, the principle of laser welding was analyzed, and a complete laser welding solution was proposed based on the design goals and principles of SFP Cage. Through these studies, we aim to provide more reliable and efficient SFP Cage soldering technology for the field of 5G optical modules.