Wang Ji represents Yi-jing in the Philosophy of Mind of the Yang-Ming School. Wang Ji comprehended the theory of Conscience, drawing from Confucianism, Buddhism, and personal experience to grasp the essence of Yi-jing. This paper examines Wang Ji's contribution to the development of Yang-Ming's Conscience theory and Yi-jing studies, alongside Zhan Gan-guan's perspectives on Conscience, Principle, and Material Force, as well as the relationship between Mind and Yi. It delves into Wang Ji's establishment of the metaphysics of Yi-jing through a non-decomposition approach. His metaphysical ontology is elucidated by the concept of "Silence in absolute stillness, enlightenment through inspiration", which unifies the "Xing school" and "Ming school" through the principles of "Qian", "Kun", "Kan", and "Li". Wang Ji explains "Tian-Ji" using "Fu" and "Gou", and delineates "Creative Creativity" through "Tian-Ji", establishing a Confucian metaphysical framework distinct from Buddhism and Taoism. Emphasizing the importance of a solid foundation rooted in the integration of politics and learning, Wang Ji's Yi-jing studies aim to enrich personal development and nourish both body and mind. It is an important representative of Wang Yang-Ming's School ,worthy of attention.