Research on the Evaluation of Financial Performance of Listed Companies in China's Automotive Manufacturing Industry -Based on PCA-DEA Model.

The automobile manufacturing industry is an important pillar industry of the national economy and one of the important heavy industry manufacturing industries in the world, which plays a key role in economic and social development. This paper takes 55 listed companies in the automobile manufacturing industry as the research object, selects 7 input indicators and 7 output indicators from 4 aspects of profitability, solvency, operating capacity and development capacity, and evaluates the financial performance in 2022 from 4 perspectives of comprehensive efficiency, pure technical efficiency, scale efficiency and scale gain based on PCA-EVA model. The study found that the listed companies in the automobile manufacturing industry have problems such as low comprehensive efficiency and unbalanced internal development, and made suggestions to improve the efficiency of green innovation, appropriately increase the subsidy of the whole department, promote the high-quality development of manufacturing industry, and help the development of China's "smart manufacturing".