In　this　study,　multi-cycle　constrained　groove　pressing　(CGP)　were　imposed　on　H62　brass　sheet,　numerically　and　experimentally.　The　relationship　between　the　distribution　of　the　von　Mises　equivalent　strain,　microstructure　and　hardness　of　H62　brass　was　investigated.　The　results　show　that　the　distribution　of　the　equivalent　strain　is　non-uniform　within　samples　subjected　to　CGP,　which　in　turn　creates　the　corresponding　non-uniformity　in　the　microstructure　and　hardness　of　H62　brass.　With　the　increase　of　the　equivalent　strain　the　grains　of　H62　brass　become　finer　and　the　hardness　is　improved.　The　value　and　distribution　of　the　equivalent　strain　in　H62　brass　affects　the　plastic　deformation　mode　at　different　locations　within　the　sample　subjected　to　CGP.　©　2010　Elsevier　B.V.　All　rights　reserved.