This paper tries to further apply the frontal complexity study to the cognition and analysis of the environmental quality of underground space comprehensive unit. By integrating the interdisciplinary courses such as underground civil engineering, energy conservation, visible scene and transportation, the author proposes the simple ESVA evaluation approach to environmental quality of the underground space comprehensive unit from the perspective of multi-dimensional factors leading to coherence. Considering the scarce land resources, this paper aims to present reference for the integrated development and evaluation on the ever-frequently addressed underground space development.