Laser additive manufacturing is one of the key technologies that promote the rapid development of the manufacturing industry. The extremely high forming freedom makes it play an important role in aerospace and other major equipment fields. With the popularization of the concept of carbon neutralization and carbon peak, the development of green manufacturing technology determines the international competitiveness of the manufacturing industry in the future. Laser additive manufacturing technology, as a typical green manufacturing technology, can greatly improve the utilization rate of materials. In this study, the airworthiness analysis idea for the development of allowable value and design value of additive manufacturing materials is introduced. The development and application status of laser additive technology based on lightweight design are presented. The challenges of laser additive manufacturing technology in the field of civil aviation are analyzed, which provides some ideas for the development of lightweight design technology for laser additive manufacturing technology in the field of civil aviation.