Seeking happiness for the Chinese people and rejuvenation for the Chinese nation is the original aspiration and founding mission of the Communist Party of China. The formation of this thought has its profound theoretical roots, profound cultural background and urgent practical needs. The original aspiration and founding mission of the Communist Party of China has rich connotations, mainly including its historical attribute, political soul, value orientation and responsibility, the key measure, a strong guarantee and powerful ideological weapons. The Communist Party of China has always stayed true to the party's original aspirations and founding mission since its birth, and has created a century of glory. On the centennial of our party's birthday, the Chinese Communist Party will continue to stick to its original aspirations and promises and lead the Chinese people to embark on a great new journey.