With the continuous growth of automobile sales，the after-sales maintenance market of automobiles has also continued to grow and develop. However，there are few researches on the after-sales maintenance technology of automobiles in China，and domestic OEMs rarely consider the maintenance performance of automobiles in the design stage. The first part of this chapter introduces the development process and current situation of automotive maintainability and the famous domestic research institution for automotive maintainability technologies. The second part is the introduction of automotive maintainability technology. It introduces the low-speed collision repairable test conditions of the automobile and the R&D process of the auto maintainability technology in detail.