Based on the processing and analysis of NOAA/AVHRR data from 2000 to 2006, this paper indicates that urban heat island of Chengdu plain has a trend of enlargement.

• 对2000~2006年春季下午NOAA气象卫星遥感数据的处理和分析发现，随着城市的扩张，成都平原城市热岛效应的规模呈扩大趋势。