Abstract: Recent studies have shown that temperature plays an important role in the process of accumulation and distribution of natural gas hydrate. Some natural gas hydrate resources in sea area coexist with geothermal resources, and distribution patterns exist. This paper puts forward the viewpoint of combined use of these two kinds of resources on the base of exploitation of natural gas hydrate by using geothermal energy. It proposes related research methods about combination evaluation of natural gas hydrate and geothermal resources. In this study, we also build the model of combination evaluation and put it into practice. Examples of applications enrich the feasibility study of exploiting methods as well as making the evaluation of the prospective areas of two resources’ complex utilization.