The　groundwater　source　heat　pump　(GWSHP)　system　is　a　complex　and　multi-links　system.　Many　factors　affect　its　design　and　operation.　This　paper　introduces　two　aspects:　geological　reconnaissance　and　design,　and　air-conditioning　system　design,　combining　with　several　actual　projects　in　Beijing.　Some　problems　appearing　in　design　and　applicability　were　discussed,　involving　hydrogeology　condition,　design　of　heat　source　wells,　formation　of　groundwater　injection,　air-conditioning　system　formation　and　load　characteristic.　Based　on　the　applicability　and　hydrogeology　condition　for　GWSHP　system,　three　kinds　of　system　applicability　area　are　presented.　In　addition,　the　GWSHP　system　is　roughly　divided　into　two　formations,　centralized　system　and　decentralized　system.　The　paper　supplies　references　to　the　designers　and　users　of　the　system.