Abstract: At the northern foot of Huang Mountain is outcrop acidic magmatic intrusive rocks of Late Jurassic to Early Cretaceous, there are hot springs and geothermal anomaly wells at the intersection of the faults. In order to research the recharge, runoff and discharge conditions of geothermal fluid at the northern foot of Huang Mountain, ascertain the water and heat conducting faults in the massive magmatic rocks, and establish the reservoir modeling in the research area, and analyze the utilization direction of geothermal water in this region. Through remote sensing hydrogeological interpretation, geological survey, geophysical survey, verification of geothermal exploration well and sample testing, the characteristics of hydro-geothermal system in the northern foot of Huang Mountain were revealed. Results The following results were obtained: (1) The groundwater come from atmospheric precipitation infiltration, and some of the groundwater runoff along the fault zone to form geothermal fluids in the study area, it was rise and discharge into the loose rock mass at the intersection of the fault; (2)The fault zone at the northern foot of Huang Mountain is weak to medium in water yield, and the north-south trending fault zone is deeply cut, which is the main water and heat conducting structure at the northern foot of Huang Mountain; The northwest trending fault zone cutting the north-south trending fault zone, partially filled with intermediate-acidic vein rocks, The water yield property is weaker than the north-south fracture, which are the main thermal conductivity and low permeability structures; (3) The northern foot of Huang Mountain belongs to the deep circulation geothermal system of uplifted mountainous areas, with thermal reservoirs mainly composed of breccia and cataclastic granite with vein rocks, the geothermal fluid is metasilicic acid & fluorine thermal mineral water, the surface hot spring water chemical type is HCO3—Ca·Na type, and the temperature of spring water was 29.8 ℃; the geothermal well water chemical type is HCO3—Na type, the temperature of water was 25.8 ℃ and 26.3 ℃. These research results provide a basis for the development, utilization, and protection of geothermal resources in the northern foot of Huang Mountain.