The underground space of the Banwoldang in Daegu is the private enterprise historical development project that Daegu City & The forth construction company of the Samsung, Kolon, Daewoo, Hwasung promote, and take a role as the underground bridgehead that links east and west of the Daegu as the lunction of the 2 subway line. Accordingly, the underground space of the Banwoldang in Daegu have a import significance in that not only the alternative of the solution about the simple commercial formation or the limited ground but also compose the important axis of the city develoment. But, When I see the variety of problems, especially see the negative import in Daegu, the solution of the problems is the large underlying cause that revitalize the city. Consequently, in the study I would like to analyze the characteristics of the large underground space and the directivity of the interior design, to assistant for the develement plan of the more safe, comfort underground space.