On June 28,2023,the Third Session of the Standing Committee of the 14th National People's Congress re-viewed and approved the Foreign Relations Law of the People's Republic of China,Article 30,Paragraph 2 of which clearly stipulates that"treaties and agreements concluded or participated in by the state shall not conflict with the Constitution."This is the first time that Chinese legal texts have clarified the effectiveness relationship between treaties and the Constitution,and truly established the principle of"constitutional supremacy"in the system of formulating legal rules.According to the relevant provisions of the Foreign Relations Law,the newly revised Legislative Law of the People's Republic of China establishes a con-stitutional review system with the exercise of constitutional review powers by the Standing Committee of the National People's Congress as the core,which not only expands the scope of constitutional review objects,but more importantly,provides new legal basis for constitutional review.The Legislative Law stipulates that the principles and spirit of the Constitution can serve as definitive standards for constitutional review.Therefore,the formal implementation of the Foreign Relations Law has injec-ted new vitality into China's constitutional review system,enabling the Constitution,as the fundamental law of the country,to gain the highest legal authority in the system of formulating legal rules,which helps to promote the implementation of the Con-stitution and maintain its authority.