Abstract:As a clean and new energy, hot dry rock has many advantages, such as great heat, wide distribution, small affect of development and utilization to environment, and not affected by seasons and natural conditions. In 70's of 20 century, development and utilization of hot dry rock have been carried out in America, while geological exploration and exploitation work of hot dry rock in China are still at the initial stage. It has a very practical significance to carry out exploration and development technologies of hot dry rock. In this paper, on the basis of introducing present study condition of hot dry rock in domestic and foreign countries, geothermal and geological conditions, characteristics of heat reservoir, development and utilization of hot dry rock in Lijin county have been analyzed, the amount of resources have been calculated, and suggestions for development and utilization of hot dry rock have been put forward.