Self-revolution is the way for the Communist Party of China to maintain long-term governance. Looking back on the remarkable hundred years of the CPC, in each historical period, namely, revolution, construction and reform, the CPC has always attached great importance to the self-revolution of the CPC and placed it in a prominent position concerning the success or failure of the regime. Since its founding, the self-revolution of the Party has gained important experience:it is the political guarantee for self-revolution to firmly maintain the authority of the Party Central Committee and its centralized and unified leadership; it is the political courage for self-revolution to firmly stand on the people-centered political position; it is the political courage for self-revolution to firmly exercise full and strict governance over the Party; it is the political strategy for self-revolution to adhere to the unity of ideological Party building and institutional party governance; it is the political foundation stone for self-revolution to adhere to the sharp weapon of criticism and self-criticism; it is the political wisdom for self-revolution to adhere to the unity of problem orientation and goal orientation. To push the Party's self-revolution to a deeper level in the new era, we must resolutely and continuously win the great hard battle of the Party's self-revolution, to realize the great goal of making China a modern socialist country and rejuvenating the Chinese nation.