Groundwater　is　a　significance　source　of　freshwater　in　both　urban　and　rural　areas　of　the　world.　With　the　increasing　groundwater　pollution,　it　is　essential　to　analysis　of　groundwater　chemical　characteristics　and　evaluate　groundwater　quality　for　water　supply　purpose.　The　study　proposes　basic　water　quality　index　module　(BWQIM)　and　integrated　water　quality　index　module　(IWQIM)　by　combining　indictors,　weights　and　model　on　water　quality　index　(WQI)-based,　and　evaluated　the　groundwater　quality　in　Chaoyang　District,　Beijing.　The　IWQIM　and　BWQIM　were　compared.　Fe,　HCO3-,　TDS　and　TH　were　identified　as　key　parameters　of　groundwater　quality　assessment.　The　water　quality　assessment　results　of　BWQIM　are　scattered.　However,　the　evaluation　results　of　IWQIM　are　basically　consistent　and　not　influenced　by　indicators　and　weights.　This　module　solves　the　problem　that　the　weight　of　over　standard　indexes　is　submerged　when　multiple　indexes　are　used,　it　is　more　reasonable　and　effective　for　groundwater　quality　evaluation,　and　overall　situation　of　groundwater　in　the　study　area　was　concentrated　in　good　level.　Groundwater　in　aquifers　in　the　study　area　is　weakly　alkaline.　The　Ca-HCO3　type　characterized　the　general　hydrogeochemical　composition　of　Chaoyang　district　groundwater.　Most　samples　fall　in　the　rock　dominance　zone,　suggesting　that　rock　weathering　and　rock-water　interactions　are　the　primary　sources　controlling　groundwater　chemistry　and　hydrochemical　evolution.　These　findings　can　provide　an　effective　tool　for　the　groundwater　management　for　drinking　and　the　sustainable　development　of　water　resources.