FeTiNbO6　(denoted　as　FTN)　is　a　recently　discovered　giant　dielectric　material　with　high　Curie　temperature　(550　K).　In　this　work,　well　dispersive　FTN　particles　with　mean　particle　size　about　500　nm　were　synthesized　by　the　improved　solid-state　reaction　method.　Using　FTN　particles　as　fillers　and　poly(vinylidene　fluoride)　(denoted　as　PVDF)　polymer　as　matrix,　multi-volume　ratio　(0%-60%)　homogeneous　ceramic/polymer　composites　have　been　prepared　through　a　hot-pressing　technology.　At　the　same　filling　content,　the　FTN/PVDF　composites　display　higher　dielectric　permittivity　compared　to　the　normal　reported　BaTiO3/PVDF　composites,　even　larger　than　that　of　PVDF　based　composites　using　giant　dielectric　CaCu3Ti4O12　as　filler.　Especially,　for　40　vol.%　FTN/PVDF　composites,　the　dielectric　permittivity　is　as　high　as　181　measured　at　100　Hz　and　25　degrees　C.　Through　the　theoretical　analysis　correlated　with　structure　evolution　observation,　it　is　deduced　that　the　high　dielectric　performance　originates　from　the　combined　effect　of　a　variety　of　factors,　such　as　giant　dielectric　semiconducting　FTN　particles,　the　micro-capacitor　structure,　and　percolation　phenomenon　at　appropriate　volume　fraction　of　FTN.　Moreover,　FTN/PVDF　composites　present　strong　dielectric　relaxation　behavior,　which　results　from　the　superposition　of　the　dielectric　relaxation　between　PVDF　and　FTN.　These　flexible,　easy　processing　FTN/PVDF　composites　with　large　dielectric　permittivity　values　could　find　applications　as　new　generational　embedded　capacitors.　(C)　2015　AIP　Publishing　LLC.