Abstract: Vertical greening has great aesthetic benefits while increasing the green amount of a city. The relevant research only summarizes the current situation from the perspective of use evaluation, and does not form a systematic vertical greening design method. Based on the landscape preference theory, this paper uses photos to simulate the vertical greening of the facades of commercial buildings with different density, color, texture, visual proportion and pattern modeling. It further conducts a questionnaire survey to summarize the main factors affecting the public aesthetic preference of urban vertical greening landscape, and puts forward design suggestions. The study finds that plant color richness, leaf texture and area ratio all affect the aesthetic preference for vertical greening to a great extent. The selection of plant configuration should be multi-plant combination, the plants are preferable of blossoms and smooth leaf texture, the leaf size is preferably 3:5:2 in ratio. The design of pattern modelling should fully consider the site characteristics, mainly in the form of regular planting, to realize the best landscape aesthetics.