In　this　paper,　the　research　progress　of　the　multi-joint　snake　robot　at　home　and　abroad　is　summarized,　which　points　out　the　way　for　the　future　research　direction　of　the　multi-joint　snake　robot.　First　of　all,　we　describe　the　current　research　status　of　the　multi-joint　snake　robot　by　famous　researchers　at　home　and　abroad,　and　show　the　current　experimental　prototype　of　the　multi-joint　snake　robot.　Then,　we　compare　different　robot　driving　forms　and　key　technical　issues　at　home　and　abroad,　analyze　the　advantages　and　disadvantages　of　the　different　robots,　and　clarify　the　future　development　trend　of　the　multi-joint　snake　robot.　Finally,　we　analyze　the　development　direction　and　research　trend　of　the　multi-joint　snake　robot,　which　lays　a　solid　theoretical　foundation　for　the　theoretical　and　experimental　research　of　the　multi-joint　snake　robot.　©　2022　IEEE.