According to theories of ecological cities, sustainable development of urban ecology can only be achieved under the guidance of associately linked urban planning and ecology theories.Evaluation and simulation of micro-scale surroundings in ecology for city planning is an important technique in quantizing micro-ecological indices in city planning. Based on computable three-dimension models, the research tries to evaluate and simulate microenvironment of planning projects by utilization of meteorological and external environment data.It aims to provide decision-making support to urban planning and urban managenent.