Abstract: Since its founding in 1921, the CPC has undertaken the historical mission of seeking happiness for the Chinese people and rejuvenation for the Chinese nation. After the founding of New China, on the basis of the establishment of socialism system and the exploration of socialism construction, the theory of common prosperity has undergone a process of brewing, forming and deepening development. As socialism with Chinese characteristics has entered a new era, CPC has put forward a new concept of "shared" development, based on its people-centered development philosophy and the transformation of the principal social contradiction. Based on the common challenges facing global development and the feelings of the people and the world, we put forward the value concept of building a "community" for mankind, which is a theoretical leap forward in realizing the development goal of "common prosperity" in the new era. In the context of "two overall situations", to achieve "common prosperity", to implement the concept of "sharing" and to build a "community", we need to follow the positions, viewpoints and methods of upholding integrity and innovation, putting the people first and bearing in mind the world. Under the strong leadership of the CPC, we need to promote high-quality development with Chinese-style modernization, and provide China's solutions, strength and contributions to the building of a community with a shared future for mankind.