Hsun Tze is a representative personage of the early Qin Confucianists. However, his theories were always excluded from the orthodox Confucianists. “Heart” is the key to the theories of HsunTze. This paper attempts to explain the content, style, and limitation of the theories of HsunTze from the perspective of “heart” and discuss the pors and cons of his theories. Hsun Tze’s concept of the “heart” has been emphasized in the first section of the paper and then the significance of his concept of the “heart,” the been explined. Focusing on the content and functions of the “heart,” the relation between the “heart” and human nature can be distinguished clearly, because the heart is elevative while human nature to Hsun Tze Is always corruptible. Finally the paper concludes in an exposition of Hsun Tze’s final dialectics of Tao and goodness in various possibilities of the interaction between the heart and goodness. The paper suggests that problems concerning the theories of HsunTze are mostly due to lack of thorough understanding on “heart”. First, Hsun Tze incomparable to Confucius and Mencius’ ultimate morality ideal of “understanding the nature with one’s full heart in order to understand the world”. Secondly, his “finite heart” was only discussed from the perspective of “cognitive heart”, but neglected “morality heart”. It is unable to find a balance for beauty and goodness in one’s heart, and has no root for the morality doctrines, hence, not every could be a saint, and “goodness” ahs to be obtained from outside. Most importantly, HsunTze’s “goodness” or “way” was only a set of proprieties without connotation like Confucius and Mencius’ “saint” or “heaven”. The lack of those righteous theories has kept the Hsun Tze’s theories out of the acceptance of orthodox Confucianists.