The　effect　of　0-600　A　direct　current　on　mechanical　properties　of　electrically　assisted　friction　stir　welded　(EFSWed)　joints　of　6mm　thick　2219　aluminum　alloy　were　investigated.　The　introduction　of　current　causes　the　temperature　difference　between　the　advancing　side　and　the　retreating　side　to　become　larger.　Compared　with　the　traditional　friction　stir　welded　joint,　the　introduction　of　current　improved　the　overall　hardness　of　the　weld　zones,　especially　the　weld　zones　at　the　AS.　The　tensile　strength　of　the　joint　of　100-400　A　has　improved　by　2.74%-7.38%,　and　the　tensile　strength　of　the　joint　with　500A　and　600A　has　significantly　improved　by　17.11%.　The　FSW　joints　failed　at　the　nugget　zone/thermo-mechanically　affected　zone　boundary　region　at　the　AS.　The　EFSW　joints　fractured　in　the　nugget　zone　at　the　retreating　side　with　the　minimum　hardness,　and　cross　section　of　the　fracture　morphology　is　a　V-shaped　ductile　fracture.　The　fracture　dimples　of　the　EFSW　joint　with　current　of　500-600　A　are　larger　and　deeper.