Common prosperity is the basic goal of Marxism and the human dreams since ancient times. It is not only an essential requirement of socialism, but also an important feature of Chinese-style modernization, and a major responsibility of the Party and government. The Communist Party of China has taken it as its original aspiration and mission to seek happiness for the people and rejuvenation for the nation since its founding. Over the past 100 years since its founding, the CPC has always taken common prosperity as the focus of fulfilling its original aspiration and mission, constantly creating great achievements worthy of the times, the people, and history, and constantly deepening its systematic thinking on major theoretical and practical issues concerning common prosperity. Since the 18th CPC National Congress, the CPC Central Committee with Comrade Xi Jinping at the core has adhered to a people-centered development philosophy and implemented a new vision of innovative, coordinated, green, open and shared development. Both take a long-term perspective, and based on the present, the Party leads the Chinese people of all ethnic groups to win the battle against poverty, build a well-off society in an all-round way on Chinese land, promoting all people's common prosperity, answering common prosperity theory logic and realistic foundation from a theoretical and practical dimension, manifesting the historical context and value orientation of common prosperity, forming the theory of common prosperity in the new era. Looking back on the Party's one hundred years history, the Party has always insisted on the guide of Marxism, been closely around the subject of realizing the great rejuvenation of the Chinese nation, deepening the theoretical and practical explore on realizing common prosperity, continuing to deepen the theoretical understanding of common prosperity, successfully founding the way to achieve common prosperity with Chinese characteristics. The theory of common prosperity in the new era has a profound historical origin and a solid theoretical basis. It reflects the distinctive mark of the new way of Chinese style modernization and the historical initiative spirit of the Chinese Communist Party. It provides scientific guidance for the realization of high-quality economic development and has profound value implication and strategic direction. Based on the new stage of development, we should carry out the new development concept, build a new development pattern, and promote the high-quality development. We should also establish a new view on development, wealth, distribution, common prosperity of socialist country, and perfect the social safety net with Chinese characteristics. We need to make persistent efforts to achieve more tangible progress toward common prosperity.