Pt-based　catalysts　have　been　widely　investigated　in　propane　dehydrogenation　(PDH)　owing　to　their　high　activity　in　C-H　activation,　while　it　suffers　from　Pt　sintering　and　coke　deposition.　We　develop　a　transition　metal　Fe　and　zeolite　support　synergistic-modified　method　to　realize　the　highly　dispersed　and　stable　Pt　species　inside　zeolite　over　Pt/Fe-silicate-1.　And　it　shows　the　excellent　PDH　performance　with　propylene　generation　rate　of　51.6　mol　C3H6　g(Pt)(-1)　h(-1)　and　low　deactivation　rate　constant　k(d)　of　0.017　h(-1)　as　well　as　a　high　TOFPt　of　37.6　s(-1)　at　550　&　DEG;C.　The　systematic　characterizations　reveal　the　isolated　Fe3+　species　could　significantly　improve　Pt　dispersity　and　regulate　Pt　electronic　density　to　realize　a　more　positive　Ptd+　species　inside　Silicalite-1　pore.　And　the　further　in　situ　DRIFTS　experiments　demonstrate　that　the　synergistic　effect　between　the　appropriate　acidic　Fe　sites　and　the　highly　dispersed　Ptd+　species　around　Fe　species　are　responsible　for　the　superior　PDH　performance.