The　surface　properties　of　heterogeneous　catalysts　regulated　by　the　modified　support　are　considered　to　be　the　key　factors　in　determining　catalytic　performance.　In　propane　dehydrogenation,　PtZn　catalysts　have　poor　catalytic　life　due　to　the　structural　instability　of　Zn　species　although　it　owns　high　intrinsic　activity.　Herein,　the　dealuminated　Beta　zeolite　is　harnessed　for　chemically　confining　the　introduced　Zn　species,　the　formed　functional　ZnOx　(0　＜　x　＜　2)　islands　are　further　responsible　for　anchoring　Pt1Zn1　alloys.　According　to　the　comprehensive　characterization,　the　modifying　surface　defects　on　the　Beta　support　can　provide　benign　metal-support　interaction　and　modulate　the　electronic　structure　of　supported　metal　species.　Hence,　the　Pt/ZnOx-SiBeta　catalyst　embodies　59.5　%　propane　conversion　with　a　high　propylene　selectivity　of　99.2　%　and　no　obvious　deactivation　undergoing　100　h　of　dehydrogenation　reaction.　The　optimal　electronic　interaction　exists　between　ZnOx　and　SiBeta,　which　inhibits　the　aggregation　of　Pt　sites　and　the　coking　formation.