This article provides an overview of the basic profile, characteristics, classification, current status, and challenges of rail transit vehicle manufacturing companies. These companies specialize in the design, production, assembly, and maintenance of rail transit vehicles. They are characterized by strong technical expertise, a well-developed industrial chain, a high degree of internationalization, and a high degree of safety and customization. Their products generally include subways, intercity trains, and trams. Currently, the industry’s market size continues to grow, its industrial chain continues to improve and progress, and it is actively expanding into overseas markets, moving towards internationalization. However, facing challenges such as technological difficulties and insufficient independent innovation, it is necessary to increase R&D investment and enhance the company’s technological capabilities. At the same time, the government needs to provide support and policies that respond to the market. Overall, rail transit vehicle manufacturers play a vital role in the development of the rail transit industry, but they still need to continue to work hard on technological innovation and market expansion. Finally, according to statistics, N1 has always been in a leading position among rail vehicle manufacturers. This article provides a detailed introduction to the company’s basic profile, business layout, international trade, economic benefits, technological innovation and market position. It can be concluded that the company’s core competitiveness is extremely strong in rail transit vehicle manufacturing. In the future, with the continuous development of the global rail transit market and the continuous improvement of N1’s own strength, its market position is expected to be further consolidated and improved.