Underground spaces have been bigger and complicated. This paper studies on the identity of underground cityscape that makes these spaces legible and characteristic , through the questionnaire on area and spot identification. The summary of results is described below. ・Identities of underground cityscapes are classified these of shopping zone and concourse zone. ・Shopping zones have lower spot identities and these identities have little difference between the areas. ・Concourse zones get identity by width , form of pillars and advertisement board. ・Sunken plaza and gateway to the ground make identity higher. ・ Characteristics of identity on each areas were made clear.