This paper aims to discuss the writings about JiuGong exploration through viewpoints of classics learning and methods. JiuGong theory, first appeared in "The Book of Rites"and "The Rites." "The Book of Changes"layouts more details on JiuGong with the eight diagrams,the formation of a system. This paper analyzes the content of JiuGongTu theory based on DunJia and Geomancy. Rather than a superstitious views this paper aims to clarify the situations through the classics learning and methods point and learn about its system knowledge.