The　volcanic　magmatic　activity　has　not　been　observed　in　the　Gonghe　basin　and　its　surrounding　orogenic　belts　since　the　Cenozoic.　Heat　generation　from　the　magma　of　concealed　granite　body　during　the　Indosinian　period　and　the　radioactive　elements　within　the　stratum　are　difficult　to　form　the　heat　source　of　hot　dry　rock　resources　in　the　Gonghe　basin.　However,　it　has　been　widely　recognized　that　this　basin　is　a　high-temperature　geothermal　abnormal　basin.　Nowadays,　two　hot　dry　rock　masses　were　verified　in　the　Qiabuqia　of　the　Gonghe　County　and　the　Reshuiquan　of　the　Guide　County　basically.　Sixteen　target　areas　of　the　hot　dry　rock　exploration　were　also　delineated　in　this　region.　Evidences　from　the　regional　gravity　and　aeromagnetic　survey,　regional　natural　seismic　imaging　profile,　tomographic　exploration　of　natural　seismic　background　noise　at　basin　scale,　ultra-high　resolution　gravity　anomalies,　as　well　as　linear　inversion　of　resistivity　and　phase　velocity　of　Rayleigh　wave　group　all　show　that　partial　melting　layer　was　developed　in　the　crust　of　the　Gonghe　basin.　This　partial　melting　layer,　located　in　the　inner　plate　environment　and　characterized　by　high　heat　flow,　constitutes　the　regional　heat　source　of　the　hot　dry　rock　resources　in　the　Gonghe　basin.　The　MT　exploration　reflects　that　the　partial　melting　layer　within　the　crust　of　the　western　basin　of　the　Gonghe　basin　is　characterized　by　a　depth　of　15-35　km,　length　of　about　41　km　and　34　km　in　east-west　and　north-south　directions　respectively,　thickness　of　2-12　km.　Comprehensive　analysis　shows　that　this　partial　melting　layer,　marked　by　a　melting　degree　of　4%-7%　and　temperature　of　about　574　at　15　km　depth,　is　mainly　located　under　the　main　detachment　nappe　interface　between　the　nappe　systems　of　the　Guinan　Nanshan　and　Gonghe,　and　above　the　main　detachment　nappe　interface　of　Xinghai　large　composite　nappe　system.　Heat　generation　from　the　continuous　dynamic　shear　friction　at　the　deep　structural,　multi-level,　and　near　horizontal　detachment　nappe　interface　during　the　Neoid　period　is　the　main　factor　for　the　formation　of　the　partial　melting　layer.　©　2021,　Editorial　Department　of　Earth　Science.　All　right　reserved.