Abstract: The basic features of annual temperature in Tianshan mountainous area for the recent 40 years are analyzed and compared with those in the Southern and Northern Xinjiang.The results are as follows:(1) The similarity of warm-cold stage of annual mean temperature between Tianshan mountainous area and the Northern Xinjiang is better than those in the Southern Xinjiang.(2) The synchronous change of spatial distribution of annual mean temperature is better in the Northern Xinjiang,and inferior in the Southern Xinjiang and in Tianshan mountainous area,but the reverse change of spatial distribution of annual mean temperature is better in the Southern Xinjiang and in Tianshan mountainous area,inferior in the Northern Xinjiang.(3) The decadal change trend of annual mean temperature is different in the three large regions of Xinjiang,but the temperature is the warmest in 1990s.(4) The spatial extent of significant linear warming trend for the recent 40 years is the widest for annual mean minimum temperature and annual mean temperature,the worst for annual mean maximum temperature.The long-term warming rate of annual mean temperature is the greatest in the Northern Xinjiang,smaller in Tianshan mountainous area and the Southern Xinjiang.The long-term warming rate of annual mean minimum temperature changes between 0.34~0.37℃ per ten years for the three large regions of Xinjiang.(5) The stages of optimum warming trends are similar for the three large regions,but warming rate is greatest for the Northern Xinjiang,and same for Tianshan mountain area as for the Southern Xinjiang.(6) The annual mean temperature for the Northern and Southern Xinjiang occurred abrupt changes from low to high in 1960 and 1978 respectively.

Key words: Tianshan mountainous area, the recent 40 years, features of annual mean temperature change, comparison with the Southern and Northern Xinjiang