Taohuashan area in Zaoyuan of Zhangqiu city is rich in geothermal resources. According to the results of coal exploration and geothermal survey, geological background, characteristics of geothermal reservoir, geophysical and chemical characteristics of Taohuashan geothermal field are analyzed comprehensively. It is regarded that Taohuashan geothermal field is a typical belt with layered type, convection with conduction geothermal field. Its geothermal reservoir is Ordovician Majiagou limestone. Temperature gradient in this area is mainly controlled by faults, and fracture conductivity is an important factor for the formation of the geothermal field. Water source is mainly infiltration water.