Based on the meteorological observation data from 1961 to 2012 of 71 weather stations in Northeast China,the spatial distribution and variation characteristics of total solar radiation in different time scales (decade scale, annual scale and seasonal scale) in recent 52 years were studied. The results show that the solar radiation resources are rich and relatively stable in Northeast China. Annual total solar radiation decreases on decade scale with decreasing rate of 1.1% per decade, which is the result from the decreases of solar radiation in spring and summer. As warming as the main feature of climate change has prolonged the growing season,total solar radiation in growing season shows non-significant changes.