The significance of Su Zhe seems to be fading in the history of literature evaluation. Ancient articles studied a family father and two sons. But Su Zhe was a dim son. It is generally believed that this phenomenon is due to the shadow his brother Su Shi cast on him. In fact, the most important reason is, in the view of the author of this paper, is that there have been researches on Su Zhe, resulting in the lack of awareness of him. Throughout Su Zhe's life learning and Tao (morality) had been his focus. His writing always emphasized building up of morality, for which both Su Shi and Qin Guan advocated, and to which modern researchers cannot turn a blind eye.