Mongolia has three(3) geothermal zones and eight(8) hydrogeothermal systems/regions that are, fold-fault platform/uplift zone, concave-largest subsidence zone, and mixed intermediate-transitional zone. Average temperature, heat flow, and geothermal gradient of hot springs in Arhangai located to fold-fault platform/uplift zone are 55.8℃, 60~110 ㎽/m2 and 35~50 ℃/㎞ respectively and those of Khentii situated in same zone are 80.5℃, 40~50 ㎽/m2, and 35~50 ℃/㎞ separately. Temperature of hydrothermal water at depth of 3,000 m is expected to be about 173~213°C based on average geothermal gradient of 35~50 ℃/㎞. Among eight systems, Arhangai and Khentii located in A type hydrothermal system, Khovsgol in B type, Mongol Altai plateau in C type, and Over Arhangai in D type are the most feasible areas to develop geothermal power generation by Enhanced Geothermal System (EGS). Potential electric power generation by EGS is estimated about 2,760 ㎾ at Tsenher, 1,752 ㎾ at Tsagaan Sum, 2,928 ㎾ at Khujir, 2,190 ㎾ at Baga Shargaljuut, and 7,125 ㎾ at Shargaljuut.