Abstract: It is a permanent theme in organizations for people to achieve harmonious integration efficiently. The human nature of harmonious integration may embody the sense of value orientation, the bounded rationality of capacity tropism and the harmonious integration of behavior tendency. Harmonious integration is a reasonable value orientation of an economic man, it is also a intrinsic mental tropism of a man in community and a existing style which a man of self-fulfillment hankers. Accepting human nature of harmonious integration is external and factual.