Abstract: The development of industry and civilization resulted in the deterioration of urban environment.Thus urban forest drew much attention because it could improve the quality of urban environment.This paper explained the definition,principle and general goals of urban forest ecological planning.The model of urban ecological plan in Shenyang was introduced,and the problem in the construction of eco-city was clarified,with improvement suggestions.This paper would provide scientific basis for the ecological construction and sustainable development of Shenyang city.

Key words: GIS, Thermal force field, Greenland coverage, Building dimension