Abstract: By the Climate trend coefficients and accumulative anomaly, the article analyzed the spatial and temporal variations character, based on the sunshine duration and air temperature data of 34 meteorological stations and global radiation data of Shapingba in Chongqing, The results showed that: 1) The air temperature in Chongqing has the ascendant trend while the global radiation has the downtrend and the two had significant positive correlation in interannual variation. The space variation was showed that the air temperature was raised significantly, in west, south- east southerly regions as well as the most areas of northeastern in Chongqing. 2) The analysis based Shapingba meteorological stations showed that the clearness index is highly correlated with the percentage of sunshine duration and the global radiation of station can be calculated for study based on sun duration.