The construction of a global community of shared future for mankind can deeply penetrate people’s hearts and influence the world because of the correct guidance of The New Era Chinese Concept of Righteousness and Benefit. The 21st century Marxism, also known as Xi Jinping Thought on Socialism with Chinese Characteristics for a New Era, has nurtured The New Era Chinese Concept of Righteousness and Benefit. It is a new concept of righteousness and benefit that has been optimized and improved in the process of adapting Marxism to the Chinese context and the needs of our times. Its essence is to pursue social fairness and justice and common prosperity for all by socialism. In short, The New Era Chinese Concept of Righteousness and Benefit is an academic expression of the correct view of righteousness and interests proposed by General Secretary Xi Jinping. The worldview and methodology of Marxism in the 21st century have forged the deep-rooted value cornerstone of this new concept of righteousness and benefit, giving it a unique comparative advantage in leading the construction of a global community of shared future for mankind, comprehensively surpassing the Western concept of righteousness and benefit. The New Era Chinese Concept of Righteousness brings together the worldview and methodology of Marxism in the 21st century, which highlights the strong value of people-oriented, self-improvement, reform, pragmatic, the great unity of the world, and comprehensively surpasses the Western concept of justice and benefit that hinders the peaceful development of mankind and win-win cooperation. The New Era Chinese Concept of Righteousness has helped the construction of the “the Belt and Road” to become a stage for building a global community of shared future, and has highlighted China’s proposition of setting the world by example: justice first, justice and benefit at the same time, equality and mutual benefit, win-win cooperation, and peaceful development are the right way for people to intersect countries and pursue national strength and prosperity. The fundamental reason why the New Era Chinese Concept of Righteousness and Benefit that can lead to the construction of a community with a shared future for mankind is that China’s rise and rejuvenation are the general trend of the times, the right thing to do and the aspiration of the people, because China’ s prosperity and power can benefit mankind and lead human civilization along the right path, that is, the construction of a global community of shared future.