Based　on　annular　crossed　cable-truss　structure　model　with　diameter　of　17.15　m,　the　type　of　membrane　roof　was　first　studied.　Two　membrane　roof　schemes,　cable-supported　membrane　roof　and　skeleton-supported　membrane　roof,　were　proposed.　The　form-finding　analysis　of　two　types　of　membrane　roof　structures　was　carried　out.　By　comparative　study,　the　strengths　and　weaknesses　of　two　schemes　were　given,　and　the　feasibility　of　skeleton-supported　membrane　roof　was　demonstrated.　Second,　skeleton-supported　membrane　roof　was　studied　by　collaborative　form-finding　and　non-collaborative　form-finding.　The　form-finding　method　being　suitable　for　the　structure　was　given.　Finally,　load　analysis,　parametric　analysis,　and　dynamic　characteristics　of　membrane　and　non-membrane　roof　structures　were　carried　out.　The　results　show　that　skeleton-supported　membrane　roof　has　the　strength　to　resist　to　external　loads.　Poisson’s　ratio　and　self-weight　have　little　influence　on　membrane　roof,　and　arch　height　and　pretension　of　membrane　surface　have　great　influence　on　membrane　roof.　The　vibration　modes　of　structure　are　mainly　manifested　as　up　and　down　vibrations　accompanying　with　local　torsion　of　planar　cable-truss　frame,　which　is　not　bad　for　overall　structure.　Meanwhile,　film-covering　effects　of　annular　crossed　cable-truss　structure　are　obvious.　The　study　contents　have　promoted　the　application　of　annular　crossed　cable-truss　structure　in　practical　engineering.　©　The　Author(s)　2019.