Urban thermal environment is a complex comprehensive performanceunder the human activity and the environment in the thermal field .T he study of the evolution of urban surface temperature can be a direct response to changes in the urban thermal environment and the indirect presentation of changes brought about by the urban structure in the process of urbanization .By using the images provided by small satellite HJ-1B in two phases of disaster reduction ,the article makes an inversion of 2009 and 2014's surface temperature in Jinan on the basis of amended single window algorithm . Then the articleuses the two of the inversion of the temperature to maketemperature difference .Every 5 ℃ is divided as one temperature grade and the basic theoryof fractal geometry is introduced into the analysis of thermal landscape spatial pattern .Using the research methods in landscape ecology , the article calculatesthe number of patches ,patch area ,degree of fragmentation and degree of dominance of two phases'temperature and temperature difference ,w hich studies thefive years'thermal landscape change in Ji'nan City . The results show that from 2009 to 2014 ,most of the area of Ji'nan temperature increased from 0 to10 ℃ ,in which the increase of temperaturein theeast andsouth of the cityis more obvious , and the local mountainous area's temperature increases above 10 ℃ .The change is related to the changes in surface structure of Ji'nan City during the expansion process .%指出了城市热环境是人类活动和周围环境在热力场下共同作用的复杂的综合场表现，研究城市地表温度的演变能够直接反应城市热环境变化和间接表现城镇化进程中城镇结构变化带来的影响。利用两期减灾小卫星 H J-1B影像，在对单窗算法修正的基础上反演济南市2009年和2014年地表温度，并对两期反演的地表温度做温度差，每隔5℃划分为一个温度等级，将分形几何学基本理论引入热力景观空间格局分析，借鉴景观生态学研究方法，分别计算了两期地表温度及温度差的斑块数、斑块面积、破碎度、优势度等指标，对济南市近5年来热力景观变化进行了研究分析。结果表明：2009年至2014年，济南市绝大部分地区温度升高0～10℃，其中，济南市东、南方向温度上升较为明显，局部山区地区温度增加10℃以上，这与济南市城市扩展过程中地表结构改变有关。
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