In　this　paper,　cyclic　shear　test　under　different　initial　consolidation　condition　are　carried　for　Fujian　standard　sand　and　Nansha　Islands　coral　sand.　The　results　indicate　that　the　dynamic　stress-strain＇s　development　mode　obviously　different　in　different　consolidation.　Under　isotropic　consolidation,　the　cyclical　effect　and　symmetrical　accumulated　character　of　dynamic　stress-strain　relations　are　both　obvious.　And　finally,　accumulated　deformation　develop　rapidly　as　loss　of　sand　strength.　Under　un-isotropic　consolidation,　when　torsion　shear　stress　work　on　dynamic　stress　plane　in　advance,　shear　strain　is　mainly　mono-directional　accumulated　deformation;　when　only　axial　stress　work　on　dynamic　stress　plane,　shear　strain　cyclical　effect　is　larger　comparatively　and　accumulated　deformation　is　not　obvious.　So　even　under　cyclic　torsion　shear　loading,　axial　deformation　is　still　the　main　deformation.　The　property　has　no　obvious　dependent　relations　with　principal　stress　coefficient.