However, with the rapid development and inspiring enlightenment of biological sociology, it is found that the animal world is also quite complex, and the expression of their behavior and emotion also can be seen as good and evil, which is not unique to human beings. So Mencius’ “four-mind of human nature” as the standard of distinguishing human and animal it could anew comprehend. this paper aims to deepen the cognition of Mencius’ “four-mind of human nature” through the two-dimension construction theory of information philosophy.