It emphasizes that the high-quality development of international Chinese education requires the support of standardized construction, pointing out that the release of the "Chinese Proficiency Grading Standards" marks a new phase for international Chinese education, with the launch of the HSK 3.0 "Outline" symbolizing the deepening of the standard system. The article focuses on the development, innovation, and application of the HSK 3.0 "Outline," exploring it from three dimensions: the outline itself, competency concepts, and global practices, aiming to promote the high-quality development of international Chinese education.