The　initial　geometric　imperfections　in　manufacturing　structure　are　unavoidable.　Critical　buckling　load　and　dynamic　instability　of　the　rotating　cantilever　cross　ply　laminate　thin　walled　twisted　plate　with　exponential　function　type　initial　geometric　imperfection　are　investigated　for　the　first　time.　The　mode　shapes　are　obtained　by　using　Rayleigh-Ritz　method　and　shallow　shell　theory　including　the　influence　of　rotational　speed　and　imperfection.　Based　on　the　Lagrange　equations　and　the　obtained　mode　shape　function,　motion　equations　considering　the　first　three　modes　of　the　system　are　derived.　The　mode　shapes,　critical　loads　and　dynamic　instability　obtained　in　present　have　been　verified　by　comparing　them　with　other　researcher　results.　The　detail　studies　about　the　effect　of　rotating　speed,　twisted　angle,　stacking　sequence　and　imperfection　factors　of　the　rotating　thin　walled　twisted　plate　subjected　to　the　in-plane　load　on　the　static　critical　buckling　load　and　dynamic　instability　are　carried　out.