Abstract: Geothermal is the heat resources from inner earth that can be exploited for our daily life usage. They are eco-frierdly energy sources that can be utilizable for industry and agriculture, with huge market potential. It is also a relatively clean alternative energy. Evaluation of the geothermal exploration will help the relevant regions to the effectively utilization. In this paper, taking a geothermal well in Beijing as an example, geothermal resources are evaluated by the hot temperature, mineral content, extraction, water quality and so on. In water quality evaluation, application types of geothermal resources are analyzed and evaluated by the medical evaluation, drinking mineral water evaluation, drinking water evaluation. In medical applications, medical effects on the human body are evaluated from the mechanical, temperature, chemical composition of geothermal water. This paper not only provides information on comprehensive utilization of geothermal resources for geothermal well, but also for the relevent areas as well.