Based on the observational temperature over 695 stations in China from 1951 to 1997,winter temperature series over 8 regions and China are constructed in terms of a method which the average is weighted by the cosine of the latitude,to investigate their variation features.Results show that:1)winter temperature displays a discontinuous warming trend on the whole,with the linear trend of about 0.155℃·(10a)^-1 and the increment of about 0.61℃ from 1950s to 1990s,which is remarkable especially after 1985;2)such a warming trend is contributed not only to the minimum temperature,but also to the maximum temperature variation;3)winter temperature over Tibetan plateau is getting colder with the warmest period in 1950s.