This paper focused on the townscapes in the public spaces at night and aimed at elucidating the evaluation structure and the relations between the evaluation factors and the physical elements. Analyzed by SD method and factor analysis, 3 independent axes of "orderliness", "familiarity" and "uniqueness" were derived. The factor of "orderliness" was related to the basic structure of the towns at night, and the "familiarity" and "uniqueness" were related to the attractiveness of the townscapes. All factors were highly estimated when the disposition of lighting was in order, while other physical elements influenced each factor in different ways.