The underground mall maintained around major cities in Japan is 78 places. In addition, those architectural area is approximately 1,110,000 square meters. In such situation, in the underground mall, a thing passing in 30 years or more after construction is over 80%. It is necessary to find the sustainability to affect safety and maintenances to modify an earthquake or a flood to utilize the underground mall as important urban infrastructure in the times pushing forward urban re-production of Japan.This paper performs evaluation by the index which paid its attention to such safety and sustainability about the underground mall, and aims at offering the information which is consulted about the measure which should be implemented in future.