With　the　development　of　economy　and　the　rising　of　public　awareness　on　environmental　issues,　building　energy　consumption,　especially　the　energy　consumption　of　public　buildings　represented　by　large　space　stadiums,　has　received　an　increasing　public　attention.　Geothermal　energy,　as　a　green　energy,　is　widely　used　in　large　public　buildings　as　a　replacement　of　traditional　energies.　This　article　compares　the　respective　economic　and　environmental　benefits　of　ground　source　heat　pump　system　and　traditional　air-conditioning　system.　First　of　all,　the　article　discusses　the　feasibility　of　building　geothermal　wells　and　utilizing　geothermal　energy　in　large　space　stadiums.　Then,　the　article　illustrates　the　determination　of　the　parameters　of　the　geothermal　wells　and　geothermal　utilization　strategy　(deep　+　shallow　geothermal)　through　software　stimulation　on　Dest.　Finally,　the　article　evaluates　the　environmental　and　economic　effect　of　geothermal　energy　system　applied　in　large　space　stadium.