This study focus on the spatial feature of the Old Summer Palace from the language of plants in the literature collection of poems by emperor. Through the language of plants, the research analyses the representation of courtyard, and gets that: the plants appeared in livings spaces and touring spaces are mostly expressing the moral honesty and great wealth. At the same time, the peach trees appeared frequently in livings spaces to express the seclusion thought. Farm crops also appeared frequently in touring spaces to emphasize the thought of paying attention on farming. In the religious spaces, the plants are appeared less, and just for ornamental values. There are Pinus only on the political spaces, the plants are not important on this kind of spaces. Overall, the plants are not only the natural beauty of the landscape, but also the expression of the spiritual world beyond the reality.
