We could recognize that the basic explaining ways of painting of China was form and ‘Xin’ concepts by searching Chinese painting theories, which was records about ancient oriental paintings. According to painting theories, ‘Xin(神, spiritual being)’, which had been talked for more than 1000 years, was important concept. Ku K'aichih thought that the most important thing in a portrait was expressing the person’s ‘Xin’, and the spiritual being was located in the center of eyes. Otherwise, to Shiht'ao he used for ‘Xin’, as artist's creative ability. In my opinion, ‘Xin’ which was mentioned in painting theory, had various hidden meanings. So I investigated the hidden meanings that were mentioned in Chinese painting theories by finding and analyzing the concept. Examine essay on painting more precisely, we find various a spects of ‘Xin’ actually. In this paper, I had an assumption that ‘Xin’ had equivalent meaning for originality. At first, I sought the examples of ‘Xin’used as a meaning of originality in their essays on painting. Second, I analyzed the details on the ‘Xin’ more clearly, and revealed the term ‘Xin’ implied characteristics of originality as artwork should possess. According to my result the concept of ‘Xin’ became more clear and accurate to us. To integrated, I thought the schema of the concept ‘Xin’ and originality were resemble in some points. First pointis both were the creation goal in the context of painting. second point is both were derived from object with mind and third point is to get both were absolutely depended on artist himself, at this time the state of artist's mind is free everything ready-made. I think when they make their artwork, they constantly observe and pay attention to their object for real. through observation and attention, they communicate with object at last, see object their own eyes. The result of these process, they paint artwork to display originality.