Abstract: The DEA model was used to measure the trade efficiency of China’s crop seeds from 2011 to 2021, and the seed industry security level was evaluated by the efficiency value. The results showed that China’s crop seed industry was generally in an insecure state with a tendency of further deterioration. The main reasons were as follows: the import volume of China’s crop seeds had increased year by year, leading to a high degree of external dependence on seeds; meanwhile, there existed problems such as high concentration of import markets and weak trade competitiveness. Accordingly, some policy measures including promoting the merger and reorganization of seed enterprises, constructing a diversified seed import pattern, and enhancing the technological innovation capability of the seed industry were proposed, so as to safeguard the security of China’s crop seed industry.

Key words: industrial security, crop seed industry, DEA model, crop seed trade efficiency