The　effect　of　modifying　microstructure　and　texture　by　electric　current　on　mechanical　properties　of　electrically　assisted　stationary　shoulder　friction　stir　welded　Ti6Al4V　alloy　were　investigated.　The　width　of　the　＇bowl-shaped＇　stir　zone　gradually　increased　with　the　increasing　current　value　and　texture　of　the　joints　changed　abruptly　with　an　increasing　current　from　0　to　300　A.　The　macrozones　consisting　of　similar　orientated　grains　in　the　heat-affected　zone　have　the　highest　deformation　degree　and　the　lowest　hardness,　while　macrozones　were　not　seen　in　the　stir　zone　of　both　the　friction-stir　welded　joints　and　the　electrically　assisted　joints.　Why　the　tensile　strength　and　elongation　reached　the　highest　at　a　current　of　300　A　was　explained　in　terms　of　microstructure　and　texture.