Abstract:On the basis of analyzing geological conditions, thermal reservoir, characteristics of cap rock in heat reservoir, geothermal field and geothermal fluid chemical characteristics of Balizhuang geothermal field in Huimin county, geothermal fluid quality and geothermal resources quantity have been evaluated preliminarily, and scientific protection radius of single well and the number of layout wells have been put foward in order to develope and utilize geothermal fields rationally.