Abstract: In order to transform Wang’s mind theory by phenomenology, the phenomenology of Husserl must return to the original intuition—the fundamental principle. This principle is concretely implemented as the “original phenomenon” with the concept of noumenon as the core. It is necessary to “return” to the original phenomenon, which is “the intuition of original giving”. In this approach, the true connotation of conscience in Wang’s mind theory must be controlled by noumenon , and Kern’s parallel classification of the triad of conscience also needs to be reinterpreted and defined. The “good” endowment of the first sense of conscience and the good and evil of the second sense are restored to the “conscience” respectively, while the empirical phenomenology of conscience into the transcendental phenomenology of conscience is elevated, which can be regarded as a possible channel in the phenomenological process of Yangmingism.