Abstract: General Secretary Xi Jinping's important expositions on common prosperity have scientifically answered major theoretical and practical questions including "what common prosperity is" and "how to realize common prosperity", and contain profound theoretical, historical and practical logics. From the perspective of theoretical logic, rooted in classical Marxist theories, these important expositions integrate the wisdom of fine traditional Chinese culture and draw on theoretical achievements and practical experience of world civilizations, embodying the distinctive character of theoretical innovation and openness and inclusiveness. From the perspective of historical logic, they summarize the CPC's historical experience in advancing common prosperity, marking a new height in the Party's theoretical development. From the perspective of practical logic, they are deeply grounded in great practices such as national rejuvenation, the building of a moderately prosperous society, poverty alleviation, and the dual prosperity of material and cultural life, demonstrating the powerful practical strength of the system of socialism with Chinese characteristics.