Abstract: As the latest theoretical achievement of the Sinicization of Marxism,theconcept of a community with a shared future for mankind is a forward-looking plan for the future development of the world on the basis of positive reflection on the current situation of human existence.Generally speaking,the subjective consciousness of human being as "quasi-existence" and the Marxist "quasi-thought" are the logical basic point of the concept of a community with a shared future for mankind,the evolution and universal development of modern "human communication" is the realistic fundamental point of the concept of it,and the idea of "harmony" in Chinese traditional culture is the ideological source of it.The logical starting point,realistic fundamental point and ideological source together constitute the source of the idea of a community with a shared future for mankind,and its systematic and in-depth interpretation and reflection is an important link for us to study,understand and practice.

Key words: Xi Jinping, community with a shared future for mankind, quasi-existence, communication practice, harmony