The modernization of social governance, as a part of the modernization of national governance, is an important content of socialism with Chinese characteristics in the new era. To explore the theoretical origin and scientific connotation of the modernization of social governance and reveal the value of the modernization of social governance is of great help for us to better understand the modernization of social governance. The modernization of social governance is not only the inheritance of Marxist social governance, but also the realization of its development on the basis of Chinese practice. To carry out the modernization of social governance, we should adhere to the people-centered concept, firmly safeguard social fairness and justice, encourage the participation of multiple subjects, and adhere to the construction of the rule of law. Only by adhering to the unified leadership of the party, constantly innovating the system and mechanism, and maintaining the stability and unity of the society can we better promote the modernization of social governance.