The inquiry about the relationship between mind and the world is a question that attracted a lot of philosophers, scientists and other researchers' great attention. It also gets some attention in Chinese traditional philosophy. In this paper, I focus on the construction of the ethical world in Wang Yang Ming's philosophy. The most important question that I concern is how the ethical world is built from Wang's point of view. According to Wang's theory, the world is built in our mind, which means it exists in our intentional activity, which is facing the outside material world and connected to it. The world exists when there is an intentional activity. Based on Wang's theory, I try to make a comparison between Wang yangming and some Western philosophers, such as Edmund Husserl, George Berkeley, through different concept of the "World". Firstly, I give a brief introduction about Wang yangming's philosophy of Mind ( Xin xue {.'~)and explain the construction of the world of meaning in Wang's theory. Second, Wang's explanation has a lot in common with some Western scholars' theory, but they are not always facing the problem in the same sense. I would try to distinguish their differences in the relation between mind and the world, at the same time, to clarify in what sense they use the concept of world. Finally, through the comparison above, I offer some provisional conclusions about the inquiry on the relation between mind and the world.