Cu-35Zn　alloy　was　deformed　by　ten　passes　constrained　groove　pressing　(CGP)　firstly,　and　then　by　cold　rolling　with　10%-30%　strain.　The　microstructure　and　properties　of　Cu-35Zn　alloy　after　processed　by　CGP　and　cold　rolling　were　studied.　The　results　show　that　the　grains　of　Cu-35Zn　alloy　get　fined　after　CGP.　The　number　of　deformation　twins　in　the　sample　increases　and　the　homogeneity　of　the　sample　is　also　improved　by　subsequent　cold　rolling.　With　the　increasing　of　cold　rolling　strain,　the　hardness　and　strength　of　Cu-35Zn　alloy　after　the　deformation　of　CGP　plus　cold　rolling　are　increased,　but　the　elongation　decreases.