Abstract: The description of non-Latin script resources in different cataloging formats is of great significance for the development of international cataloging practice. This paper analyzes the principles, methods, and practices employed by the Library of Congress in describing non-Latin script resources in different formats, including USMARC, MARC21, and BIBFRAME, providing a comprehensive understanding of their evolution over time. Through in-depth interpretation and analysis of non-Latin script resource descriptions, it provides reference for the development of non-Latin script resource description practices in China.