In the urban landscape, sculpture is vital to represent culture tradition of the city. It is a soul part of whole landscape. This paper uses the main city in Chinas park or green place as the research object and selects 100 representative samples for quantitative evaluation of the garden sculpture by SBE method. By using correlation analysis, variance analysis, stepwise regression method, it determines the main influence of garden sculpture factor, establishing the aesthetic evaluation model. The result shows that the Form proportion (F=3.655, P=0.000), Quality sense (F=3.359, P=0.001), Thematic expression (F=2.318, P=0.023)and Interactivity (F=2.114, P=0.037) is the main effect indicators of the degree of beauty of garden sculpture and established a prediction model of aesthetic evaluation. SBE = -190.471 + 26.2999xForm proportion + 13.840xQuality sense + 11.032xThematic expression + 0.46xInteractivity. Finally, use the model to conduct the designing of garden sculpture, and propose some idea of optimization suggestions.