Friendliness is the most innovative concept in China’s socialist core value system. As the inner virtue of the unity of tolerance and friendly attitude towards others based on inner goodwill and the practical action of helping others based on love, the unity of knowing and doing and from knowing to doing, the unity of reality and ought to be and from reality to ideal, the unity of consciousness and voluntariness and from consciousness to voluntariness are the important characteristics of the faith of friendliness. Friendliness not only has its material basis in reality, but also is the objective reflection of the consistency of people’s fundamental interests and the pursuit of harmonious interpersonal relationship. In particular, it conforms to the objective inevitability of people’s pursuit of a better life and selfimprovement of human nature in the new era. Friendliness also has its cultural gene of traditional moralism in China. In traditional culture, it has its ontological basis of “benevolence is human”, its axiological basis of “ a gentleman is honest and upright, and a villain is sad ”, and its inheritance of wisdom of “harmony is precious”. The organic integration of friendly reality basis and cultural gene is the historical necessity that it can be promoted to the core values and ultimately believed by the majority of people.