Abstract
According to previous studies, the form of a city mentioned in Kaogongji(考工記) of Zhouli(周禮) does not exist in reality. Only Beijing during Ming(明) and Qing(淸) Dynasties is discussed as an example, making it lose its worth as a theory. But of all the annotation of Zhouli throughout the 2,000 years before the modern era, core theory related to capital construction had never been stated from the aspect of the present day. Such discussion can be found depicted in Yingzaofashi(營造法式), a specialized book about architectural technology. Unlike what is known until now, the principle of capital construction has a link to the theory of Fengshui(風水), in that it implies the logic of 'Yi(易)'.