This proceedings book selects a great deal of research achievements in industrial restructuring strategy, industrial organization, industrial policy, departmental economic research, industrial competitiveness, regional industrial structure, national industrial economic security theory, and empirical research, and it emphasizes on combining theory with practice. With the economic globalization, there have been many new phenomena, new situations, and new challenges in the industries in many countries. The proceedings aim to discuss the problems in industrial economics and industrial security theories and practices. It is the documentation of the conference ¿9th International Conference on Industrial Economics System and Industrial Security Engineering¿. Due to the impact of COVID-19, IEIS2022 took place online as a virtual conference.