Weather conditions have an important influence on City air quality. Correlation of various meteorological elements and air quality, analysis of long-term trends of meteorological elements is an important research content of city atmospheric environment. For promote understand the changes of atmospheric environment in the northern Chinese heavy industrial city of Shenyang, analysis of variation characteristics and trend of air temperature, surface temperature, wind speed, precipitation, air pressure and other meteorological elements during 19512012 in Shenyang city. Clarifies the correlation of winter air pollution index and meteorological factors in Shenyang during 20082013. During the years of 19512012 in Shenyang City, analysis of air temperature, ground temperature, precipitation, wind speed, 0cm pressure daily average data, the results show that: air temperature and the surface temperature rise in Shenyang city during 19512012. Wind speed, precipitation, air pressure decreased. The meteorological factors showed significant seasonal variation characteristics, in which the air temperature in winter and spring and surface temperature in winter rise trend most obvious. Wind speed in winter and spring, precipitation in summer and autumn, air pressure in spring and autumn decreased obvious. 20 Centuries since 90 time, the air temperature and surface temperature increased obvious in Shenyang city, wind speed and air pressure decreased obvious, interannual variation has a trend of increase. Analysis of air pollution index daily data in Shenyang City during winter of 20082013. Air pollution is linear increase trend in winter in Shenyang city. Air pollution index and air pressure, wind speed, precipitation was negative correlation, and air temperature, surface temperature was positive correlation, in which and surface temperature most relevant. the change of the surface temperature in Shenyang city and 200 hPa wind speed, 500 hPa high voltage, 850 hPa south wind in East Asia was positive correlation, but and 850 hPa north wind was negatively correlated. These show that, Climate warming and the decrease of wind is an important cause of air pollution in Shenyang city.