Confucius a "shi"(時) and "the doctrine of mean"(中庸) expand for constancy(經) and adaptation(權) in mencius. This notions leads up to universialitic a standing rule and Specific a practice. Probleme of Mencius make proper adaptations a duty is application of goodness universiality and Specific. But for mencius, in ordinary times moral order of moral abiding is constancy. This constancy is universialitic a moral standing rule. But in proportion to a case, according to circumstance undergo a change. This according to circumstance undergo a change, we’s moral practice imminentve performanced. To This, remark for adaptaion. And this is Specific moral application. Mencius speaking to "sicheng"(思誠), "cheng"(誠), "liangzhi"(良知), "liangneng"(良能)etc aiso is adaptaion rule an expansion. This a thesis leads up to stand out this point.