|Its sensitive alpine ecosystems are greatly affected by the global warming phenomena that results in abnormal weather patterns and climate change. Thus, alpine plant flowering phenology and responses to climate change are worthy of detailed study. This study focused on the flowering phenology of 55 entomophilous plant species along the East Xue Trail of Xue Mountain in the Shei-Pa National Park. We analyzed the relationship between the number of monthly flowering species and temperature and rainfall as well as flowering phenology according to altitude and relative species within the dominate family. In addition, between 2010 and 2011, we also compared the date of first flowering (DFF), cumulative hours (CH), and effective accumulated temperature (EAT) of 11 alpine plant species. The 55 entomophilous plant species' flowering began at the end of February and ended in mid-November; most plant species flowered from May to August in 2010. The number of flowering species each month was significantly and positively correlated with raised temperature and rainfall and the most number of species (29 species) bloomed in the warmest month, July. Rosaceae and Ericaceae family plants bloomed earlier (spring to summer) in the study area, while Compositae plants flowered relatively late (summer to fall). Comparing DFF of 11 alpine plant species between the years 2010 and 2011, flowering occurred later in the year in 2011. This may be due to the temperature between January and June being lower in 2011 compared to 2010. Among the seven studied perennial herbs, Primula miyabeana and Gentiana itzershanensis bloomed ＞ 20 days later in 2011 than in 2010 whereas other species bloomed approximately 7 days later. The differences in CH and EAT received by six species of Rhododendron pseudochrysanthum as well as Rh. rubropilosum, Pr. miyabeana, G. itzershanensis, and Potentilla matsumurae var. pilosa were smaller than those received by five other species between the 2 years, 2010 and 2011. These results suggest that in species, such as Rh. pseudochrysanthum, flowering was more sensitive to temperature and that they could be used as an indicator species of climate change and global warming in the Taiwan alpine ecosystem.