Abstract:　The　gas-phase　propylene　epoxidation　for　noble　metal　system　as　a　green　process　has　confronted　a　great　challenging　task　in　metal　utilization　and　stability.　In　this　work,　we　realize　the　enhancement　of　Au　capture　efficiency　and　high-dispersed　Au　nanoparticles　by　supports　modification　and　interfacial　regulation　to　construct　Au–Fe–TS-1　interface　coupling　structure.　The　Au　capture　efficiency　of　the　optimum　catalyst　arrived　at　69%　and　it　displayed　a　7.3%　C3H6　conversion　with　a　PO　selectivity　of　89.9%,　giving　a　H2　efficiency　of　about　25.7%.　Then　some　typical　characterizations　systematically　elucidate　that　Fe　is　not　only　incorporated　into　TS-1　framework　and　captures　Au　species　with　high　dispersion　and　stability,　but　also　inhibits　the　losing　of　Ti　species.　Furthermore,　Fe-modified　catalysts　change　the　property　of　Au　active　site　and　maintain　lower　apparent　activation　energy.　This　report　may　provide　a　new　strategy　to　design　advanced　catalysts　for　enhancing　metal　utilization　efficiency　by　the　construction　of　interface　coupling　structure.　Graphic　Abstract:　[Figure　not　available:　see　fulltext.].　©　2020,　Springer　Science+Business　Media,　LLC,　part　of　Springer　Nature.