Prefabricated　exterior　wall　panel　is　the　main　non-load-bearing　component　of　assembly　building,　which　affects　the　comprehensive　performance　of　thermal　insulation　and　durability　of　the　building.　It　is　of　great　significance　to　develop　new　prefabricated　exterior　wall　panel　with　durable　and　lightweight　characteristics　for　the　development　of　energy-saving　and　assembly　building.　In　the　prefabricated　sandwich　insulation　hanging　wall　panel,　the　selection　of　material　for　the　outer　layer　and　the　arrangement　of　the　connector　of　the　inner　and　outer　wall　layers　affect　the　mechanical　performance　and　durability　of　the　wall　panels.　In　this　paper,　high　performance　cement-based　composites　(HPFRC)　are　used　in　the　outer　layer　of　the　new　type　wall　panel.　FRP　bars　are　used　as　the　interface　connector.　Through　experiments　and　analysis,　the　influence　of　the　arrangement　of　connectors　on　the　mechanical　behaviors　of　thin-walled　composite　wall　panel　and　the　panel　with　window　openings　under　two　working　conditions　are　investigated.　The　failure　modes　and　the　role　of　connectors　of　thin-walled　composite　wallboard　are　analyzed.　The　influence　of　the　thickness　of　the　wall　layer　and　their　combination　on　the　strain　growth　of　the　control　section,　the　initial　crack　resistance,　the　ultimate　bearing　capacity　and　the　deformation　of　the　wall　panels　are　analyzed.　The　research　work　provides　a　technical　reference　for　the　engineering　design　of　the　light-weight　thin-walled　and　durable　composite　sandwich　wall　panel.