A　new　type　of　cable-strut　tension　structure　named　Annular　Crossed　Cable-truss　Structure(ACCTS)　comprises　a　series　of　planar　cable-truss　frames　crossed　each　other.　To　investigate　the　force　mechanism　of　ACCTS,　a　cable-truss　frame　model　with　2-bar　and　6-cable　has　been　developed,　and　its　initial　stiffness　formula　has　been　derived　as　well.　The　model　is　further　simplified　to　make　it　is　upper　and　lower　vector　heights　equal,　a　nd　then　the　initial　stiffness　formula　and　the　critical　slack　load　formula　are　further　deduced.　Based　on　ANSYS　software　and　cable-truss　frame　with　a　span　of　60m,　the　influences　of　the　number　of　struts　and　position　of　jumped　layout　on　the　cable-truss　frame　are　studied.　According　to　the　former　60m　span　cabletruss　frame＇s　research　results,　the　jumped　layout　of　ACCTS　with　a　span　of　100m　is　studied.　The　static　and　dynamic　performances　of　two　schemes,　the　optimal　jumped　layout　scheme　and　the　original　scheme,　are　systematically　studied.　It　is　shown　that　the　number　of　struts　would　be　about　6　similar　to　8　for　the　planar　cable-truss　frame　and　the　optimal　order　of　jumped　layout　is　strut　6-7　-＞　strut　4-5　-＞　strut　2-3.　The　optimal　order　of　jumped　layout　of　ACCTS　agrees　with　that　of　the　cable-truss　frame,　verifying　the　feasibility　of　conclusions.　In　the　condition　of　no　variati　on　in　the　original　structure＇s　static　and　dynamic　performance,　the　optimal　scheme　of　the　jumped　layout　will　lower　the　steel　consumption　and　enhance　the　buckling　loads.　Moreover,　it　also　simplifies　structure　for　easy　construction.　Copyright　(C)　2021　by　The　Hong　Kong　Institute　of　Steel　Construction.　All　rights　reserved.