Abstract: The Linzhi City of Tibet is located in the Qinghai-Tibet Plateau. Air oxygen content is a significant but not previously considered impact factor that affects travel comfort. Based on the oxygen level and environmental meteorological data from June 2016 to June 2017 in Lulang International Tourism Town of Linzhi, this paper analyzes the hourly, daily and monthly changes of air oxygen content, and then participates in the evaluation of tourism comfort in Linzhi City as a new impact factor. The results show that Linzhi is suitable for tourism from April to October (the best tourist period from June to August), March and November are not suitable for tourism, and December to February (the winter) is not recommended for tourism in Tibet.