A major objective of this monograph is to identify the impact of thermal environment on urban center district. It provides in-depth evaluation and research on the correlation between urban spatial morphology indicator and urban thermal environment. In addition, the distribution characteristics of thermal environment and urban morphology units sample are also evaluated intensively. Furthermore, it analyses from three aspects of urban planning, architecture and landscape respectively and includes 35 concrete measures that could be brought into practice on reducing negative impact of urban thermal environment. Through 500 vivid figures, graphs and diagrams it illustrates the relationship between urban morphology and urban thermal environment. The analysis software employed by the author includes Ecotect, ENVI-met and Ray-man. It intertwines the quantitative research of both thermal environment and urban morphology through in-depth analysis and urban microclimate simulation. It makes a valuable contribution for the research on urban environment and urban morphology.