Abstract: Perception is the first step of adaptation, which could affect human's decision-making and behavior pattern. Based on the statistics of the random sampling survey of climate change awareness and meteorological data from 1980 to 2005 in Mohe County of Heilongjiang Province, theories of Environmental Psychology and Behavioral Economics have been used to analyze the peasants?perception on climate change in the past 20 years. The results show that the peasants have good perceiving capacity for climate change trends, and can make right perception, although uncertainty exists because of individual differences in objective. Perception of climate change intensity based on weather or climate condition in past 2 to 3 years corresponds to the real fact, but it is uncertain to reflect long-term fluctuations in climate. Even though the peasants have correct understanding on climate change and make corresponding adjustment, it's hard to grasp the adjustment range.

Key words: climate change, perception, peasant, Mohe County