To make people live a happy life is of vital important to the nation. Xi Jinping’s concept of people’s happiness stems from Marxist theory, and the CPC’s value concept of “people first”, reflects the fundamental requirements of the development of the times, and opens up a new realm of socialism with Chinese characteristics. Its elaboration proposed perseveres the original intention and mission of seeking happiness for the people, and from the insistence take the people as the main body, take the happy life needs as the power, take the arduous struggle as the way, to persist leadership of the CPC as the fundamental guarantee, to achieve the happiness of all the people through common prosperity, solves the world difficult problem by the human destiny community, answered the question of seeking happiness for who and how, has formed the systems science people’s happy view system. This system provides the legal basis for the long-term ruling of the CPC, provides the value lead for the realization of the great rejuvenation of the Chinese nation, and points out the direction for the common happiness of human society, highlighting the unity of theoretical and practical values, domestic significance and international significance.