Zhu Xi put forward many explanations for the concept of ＂the supreme good＂. He believed that ＂the supreme good＂ was ＂in accordance with the truth, it is necessary to do so＂ and ＂it is the extreme of nature, no human desire ＂.It is ＂excellent＂ and ＂very good＂. From the ontological point of view, ＂the supreme good＂ comes from the destiny, the heaven and the heavenly principles, however, Zhu Xi's discussion of ＂the supreme good＂ emphasizes the specific practice and moral cultivation of the method, which is the implementation of the ＂supreme good＂ on specific things.＂Ming Ming De＂(to illustrating illustrious value), ＂Xin Min＂(to renovate the people) all point to ＂the supreme good＂, but the organic unity between them can achieve the true ＂the supreme good＂. Although it is difficult to achieve the goal of ＂reaching the supreme good＂, it must be emphasized that it should be the highest goal of moral cultivation. Zhu Xi's disciples and later scholars had made further progress in explaining the concept of ＂the supreme good＂. They linked the ＂supreme good＂ with the concept of ＂destiny＂, ＂neutralization＂ and ＂Huangji＂ to study these concepts together, which enriched the connotation of ＂the supreme good＂.