To govern the country, the Party must first be governed, and only when the Party is strong can the country be strong. The report to the 20th National Congress of the Communist Party of China (CPC) for the first time introduced the major proposition of "improving the system for exercising full and rigorous Party self-governance." In an important speech delivered on June 30, 2023, at the 15th group study session of the Political Bureau of the CPC Central Committee, Xi Jinping, general secretary of the CPC Central Committee, reviewed and summarized the achievements made in building the system for exercising full and rigorous Party self-governance since the new era, deeply analyzed the new situation and tasks faced, and systematically elaborated on the ideas and measures for improving the system. This fully reflects the high level of consciousness of the CPC Central Committee, with Comrade Xi Jinping at its core, in adhering to the spirit of reform and strict standards to govern the Party, and in leading social revolution through the Party's self-reform.