This book delves into the core principles and content of national symbol legislation. By using China's national flag, anthem, and emblem laws as an example, it seeks to establish a systematic framework for understanding national symbol legislation, including its theoretical underpinnings, fundamental concepts, and key legal systems. First, the book establishes the national symbol legislation as a distinct and well-organized branch of constitutional law. By analyzing commonalities across legislation for national flags, anthems, and emblems, it then outlines a shared legal framework for these symbols. Last but not least, it introduces the distinctions across different national symbols such as national flags, anthems, emblems, country names, heads of state, capitals, and national days.