Metamaterials　have　attracted　much　attention　because　of　their　extraordinary　mechanical　properties　that　natural　materials　cannot　achieve.　The　properties　of　metamaterials　mainly　depend　on　the　microstructure　of　artificial　design,　so　the　metamaterials　can　go　beyond　the　intrinsic　properties　of　the　materials　and　enter　the　era　of　＂artificial　design＂.　Precisely　designed　phononic　crystals,　known　as　＂seismic　metamaterials＂,　can　create　a　band　gap　corresponding　to　the　seismic　frequency.　In　this　paper,　the　basic　unit　phonon　crystal　types,　band　gap　characteristics　and　isolation　principle　of　seismic　metamaterials　were　reviewed.　The　research　status　of　seismic　metamaterials　at　home　and　abroad　was　summarized.　Based　on　the　problems　existing　in　the　current　application　of　seismic　metamaterials,　the　future　application　of　seismic　metamaterials　in　earthquake　disaster　reduction　was　prospected.　©　2019,　Chongqing　Functional　Materials　Periodical　Press　Co.　Ltd.　All　right　reserved.