Pollution　risk　assessment　of　a　groundwater　resource　area　is　instrumental　in　contributing　to　groundwater　protection.　This　study　considered　the　evaluation　results　of　source　apportionment　by　combining　a　principal　component　analysis　(PCA)　with　a　factor　analysis　(FA)　to　identify　potential　risk　sources.　The　vulnerability　was　evaluated　using　a　DRASTIC　model　as　the　main　pollution　pathway,　and　groundwater　quality　as　a　pollution　receptor,　in　order　to　validate　the　risk　of　pollution　in　a　typical　groundwater　resource　area　of　northeastern　China.　Results　showed　that　four　principal　potential　pollution　sources　were　point　source　pollution　such　as　water-rock　interaction,　dissolution　of　iron　and　manganese　bearing　minerals　due　to　geological　processes,　non-point　source　pollution　of　nitrogen　such　as　agriculture　fertilizers,　and　organic　pollution　resulting　from　domestic　and　industrial　wastewater.　A　＂high＂　and　＂relatively　high＂　pollution　risk　occurred　mainly　at　the　northwestern　and　southeastern　edges　of　the　region,　respectively,　with　a　widely　distributed　＂moderate＂　pollution　risk　over　the　majority　of　the　study　area,　and　a　＂relatively　low＂　and　＂low＂　pollution　risk　located　mainly　in　the　central　of　the　Limin　Groundwater　Resources　area,　which　showed　that　the　potential　pollution　sources,　especially　due　to　human　activity,　have　significantly　changed　the　distribution　of　pollution　risk　in　groundwater　resource　areas.