Recently, auto-camping, as an outdoor recreation activity, is rapidly spreading in Korea. The purpose of this study is to analyze on how outdoor recreation participants` cognition of climate change influences on their behaviors, applying extended theory of planned behavior to auto camping users in winter. This study conducted questionnaire-based survey (336 valid samples), interviews for 4 campers and 2 camp managers, and on-site observation. The surveys including observation and interview were carried out from November 25th to December 29th in 2012. The results of SEM indicated that the cognition of climate change affected attitude and subjective norm but not perceived behavioral control. Also, attitude, subjective norm and perceived behavioral control influenced behavioral intention. These results showed that the education about environment consciousness such as energy saving, tree damaging, littering and water pollution was needed for campers to minimize negative environmental impact.