In this study, urban climate zones were categorized with urban climate factors and influential factors derived from urban climate simulation and finally the characteristics of urban block with building complex were deduced from each urban climate zone. The results of this study were as follows. 1) Urban climate simulation was performed by urban canopy model with 600 cases of urban blocks varying the size of gross building coverage ratio, building height and building width. 2)Based on the urban climate simulation results, Principle Component Analysis was performed to summarize urban climate factors characterizing urban climate zones(UCZs). 3) 4 urban climate zones were categorized from 600 cases of urban block through Cluster analysis. UCZs were classified with UCZ1: lower height block, UCZ2: width oriented-high floor space index block, UCZ3: medium H/W ratio block and UCZ4: higher H/W ratio block. 4)Approximately the difference of day average temperature of $2^{circ}C$ was appeared between UCZ2, the highest day temperature zone and UCZ4, the lowest one. At UCZ1, both high daytime and nighttime average temperature and higher wind velocity than other zones. 5)Finally, the influence of urban block on urban climate formation was predicted through regression equations of each urban climate zones. With daytime temperature formation, building height and width was the most sensitive factors throughout all UCZs and especially sky view factor was the most sensitive one in high H/W urban block. With daytime wind velocity formation, building coverage ratio and sky view factor was the most influential.