For　rubber　pure　shear　specimen,　the　effects　of　neglecting　deviation　from　real　pure　shear　in　the　end　regions　are　evaluated　by　using　non-linear　finite　element　analysis.　The　results　show　that　the　deformation　in　the　centre　is　close　to　real　pure　shear　while　in　regions　near　the　free　edges　is　complex.　Moreover,　the　size　of　the　region　affected　by　the　free　edge　decreases　with　increasing　strain.　Besides,　the　larger　the　ratio　of　width　to　height　of　the　specimen　is,　the　closer　approximation　to　real　pure　shear　is.　Calculations　of　tearing　energy　are　made　for　a　rubber　pure　shear　specimen　with　a　central　crack　or　an　edge　crack　in　the　specimen.　Finite　element　analysis　results　for　the　tearing　energy　agree　with　the　previous　theoretical　solution　for　long　cracks.　Tearing　energy　is　linear　with　the　length　of　the　crack　while　the　crack　is　short.　The　analyses　are　also　performed　by　using　various　material　models　to　investigate　the　effects　of　different　material　models　on　deformation　and　fracture.