The purpose of this study was to classify garden space formation and to clarify its characteristics, by focusing on the plane components of Chinese private gardens, and analyzing the types of such components and their ratio of plane surface area. Comprehensive quantitative analysis was carried out for the study, based on the data of 16 gardens selected from relevant reference materials as well as surveyed drawing. The results showed that classification consisted of three groups; group A with connected features, group B with main features and group C with a unique space formation. In addition the ratios of the space components' area of each group were also obtained. Based on the plane components of the garden, the classification of space formation and its characteristics were revealed.
