In this research, a Simple Landscape Gardening Design-Environmental Evaluation tool was developed using Vector Works and general 3D-CAD of a plant growth simulation model AMAP. When you design forested land in a city, such as the Namiki Park, tools like this can be used to compile the environmental map of the forested land. Thermal environmental measurement was done inside the government-managed Showa Kinen Park, from the result, we led the expression to calculate MRT and CSE of the environmental Index by using greenery. In addition, it drew up the surface temperature file every of material from the infrared ray thermal imagery, converted to a database and it constructed the kind of system which can do environmental appraisal simultaneously with the design. The forested land was actually designed with the developed tool and an environmental map was drawn up. With sands in the land, we obtained CSE with negative number, the urban area compared to air temperature was 2 degree C or more higher and the forest area with have been converted CSE being correct, the urban area compared to 4 degree C or lower were obtained.
