Chiral　metamaterials　are　widely　studied　for　their　unique　mechanical　properties,　but　still　have　problems　such　as　low　stiffness　and　few　available　scenarios.　Based　on　the　tetra-chiral　metamaterial,　a　type　of　metamaterial　with　programmable　stiffness　and　multistability　is　designed　in　this　paper.　The　stiffness　of　two-dimensional　(2D)　metamaterial　can　be　adjusted　programmatically　by　changing　its　geometric　parameters.　The　equivalent　elastic　modulus　and　Poisson＇s　ratio　were　obtained　by　using　an　analytical　solution　and　finite　element　method.　Then　the　2D　metamaterials　were　extended　to　cylindrical　tubes　with　multistability.　The　deformation　patterns　of　the　2D　metamaterials　and　cylindrical　tubes　with　different　geometric　parameters　were　investigated.　It　is　found　that　the　cylindrical　tubes　can　exhibit　compression-torsion　coupling　and　multistability　deformation　characteristics.　This　work　can　provide　a　valuable　reference　for　designs　of　novel　metamaterials　with　coupled　deformation,　as　well　as　further　expanding　the　field　of　application.