Wind　turbine　manufacturers　and　foundation　designers　design　tower　and　jacket　respectively,　due　to　their　distinct　responsibilities.　This　separated　design　is　carried　out　through　load　transfer　at　the　bottom　of　the　tower　and　its　sizestructural　style　and　dimensions　are　determined　by　repeated　iterations　through　load　transfer　at　the　bottom　of　the　tower.　In　addition,the　design　of　offshore　wind　turbine　jacket　typically　refers　to　offshore　oil　platforms　and　other　regulations,ignoring　the　unique　characteristics　of　offshore　wind　turbines.　The　above　two　reasons　restrict　the　mechanical　properties　of　the　supporting　structure　to　a　large　extent,which　leads　themore　iterative　processnumbers　and　cannot　capture　the　dynamic　responses　of　the　overall　structure.　A　structural　design　of　jacket　utilizing　topology　optimization　wasis　presented　to　address　these　challenges.　The　structural　performance　is　further　enhanced　by　relocating　the　interface　between　tower　and　jacket,hence　expanding　the　design　space.　NREL　5　MW　offshore　wind　turbine　was　chosen　as　the　reference.　The　structural　responsesnatural　frequency　and　maximum　deformation　of　the　novel　structures　resulted　from　thereference　structure,　topology　optimization　structure　and　integrated　design　were　provided.structure　under　different　limit　conditions　are　compared　respectively.　The　results　demonstratedprove　the　efficiencyeffectiveness　and　superiority　of　the　proposed　method　of　integrated　design　method　for　support　structures.　©　2024　Science　Press.　All　rights　reserved.