Abstract：Tongren area of Qinghai Province in the eastern part of the Qinghai Tibet Plateau has strong tectonic activities and superior geothermal conditions. The Qukuhu hot spring with water temperature of 46. 6 ℃ and Lancai hot spring of 82. 2 ℃ are exposed. High-precision ground magnetic data showed that high-radioactive intrusive rocks were hidden beneath the Neogene strata in Jiawu on the east of Tongren County. Based on the analysis of the regional thermal tectonic condition and the interpretation of the fault by the controlled source audio-frequency magnetotelluric ( CSAMT) method, it was found that the rock system was affected by the regional belt heat source in the Waligong-Duohemao strike-uplift tectonic belt. According to the comprehensive analysis, the dry-hot rock resources co-heating with fault condition heat and radioactive heat source were developed in Jiawu, Tongren Country, which is a favorable section for the further exploration of dry hot rock resources.

Keyword：Tongren area;hot dry rock;high-precision magnetic method;radioactive heat source;