Perception is an important information basic of human adaptation to climate change. We researched herders perception to climate change and its deviant path at different grassland resources levels, which included 1292households in northern grassland of China such as meadow steppe, typical steppe, desert steppe, steppe desert, sand land and agro-pastoral area. The temperature was significantly rise by 0.63℃/10a (P<0.01) in 1980~2009. However, there was no significant change about precipitation (-8.48mm/10a,P>0.05). Majority of respondents considered precipitation have been deceasing in past 30years, whereas no significant difference was detected by actual precipitation data. Unlike precipitation perception, herders had no clear judgment to temperature change. The conduction of pasture information was an important reason of herders bias in climate change. Precipitation but temperature had a good relationship to herders climate change perception. Climate conduction perception was influenced by the distances to administration center, the householder age, educational background, carrying level, grassland-livestock resources and so on.