Since last 50 years, Taiwan population has tremendously increased leading to a great prosperous economic development. However, the overuse of land, heavy deforestation and consequence of 921 earthquake have resulted in an increasing landslide with mud and stones in the area after a heavy rainfall, which also lead to a great change of environment. Furthermore, a great amount of greenhouse gases, namely CO2, NOx, SO2, CFC, etc. released from all kinds of petroleum industry or combustion of wood material have significantly increased, leading to a global warming, resulting in a global climate change. The project of this study is aiming at: (1) to digitize the alpine plants distributed in Hehuanshan area, (2) to measure the biodiversity of the plants varied in different altitude, (3) to analyze the genetic structure of plant populations based on microsatellite of several endemic, exotic or/and invasive species, (4) to correlate the relationship between population structure with altitude of the plants. The findings of the study will provide adequate informations for government and the Hehuanshan of the Taroko National Park for the nature conservation.