Abstract: In the cognition and handling of the relationship between man and nature, people seem identical with the unity of man and nature. With this identification, however, there still exist some disagreements in understanding the unity when people go for further explanations about it, and there inevitably appear different stands and attitudes upon the proposition. It means that it is essential that the unity can be reasonably understood and complemented rather than generally held just as a conception. Based on the analysis of essential divergence, this paper has drawn a conclusion that the latest achievements of scientific research has endowed some new ideas to the relationship between man and nation.