目的：本研究旨在探討臺灣百岳登山者之遊憩專門化與環境態度之關係。方法：研究對象以至少須有乙次以上之臺灣百岳登山經驗者（以下簡稱：百岳登山者），採便利抽樣實施問卷發放，共有386份有效樣本。結果：不同背景變項的百岳登山者在遊憩專門化與環境態度上均有差異存在，且百岳登山者遊憩專門化與環境態度之間具有相關性，而百岳登山者遊憩專門化對環境態度亦具有預測能力。結論：百岳登山者遊憩專門化與環境態度之構面間具有顯著之相關性，而遊憩專門化對環境態度亦具有預測力。遊憩專門化程度越高者，對環境態度的認同程度就會越高。最後，針對研究結果提出討論，並對未來實際應用及研究提出相關建議。

The purpose of this research was to estimate the effect of recreation specialization on environmental attitudes of people climbing the top 100 peaks of Taiwan (shortened as, 100 peak climbers). The participants should have at least one experience of climbing the Top 100 Peaks of Taiwan. Using convenience sampling, the participants were from the domestic mountaineering community or club members. The number of valid questionnaires was 386. The results indicated there were differences among demographic variables, recreation specialization and environmental attitudes for 100 peak climbers. Also, there were correlation between recreation specialization and environmental attitudes while recreation specialization could positively predict the participants’ environmental attitudes. The findings were as follows: the higher the level of recreation specialization for 100 peak climbers, the more positive environmental attitudes they had. In the end, the future research direction and practical implication are also recommended.