A　facile　strategy　is　applied　to　construct　Fe　supported　ZSM-5　(Fe/HZ5-HTS)　via　hydrothermal　post-treatment　and　applied　to　ethane　non-oxidative　dehydrogenation.　Compared　with　Fe/HZ5-IWI　prepared　by　incipient　wetness　impregnation,　Fe/HZ5-HTS　exhibits　superior　catalytic　activity　and　long　catalyst　stability　with　6000　minutes　time-on-stream.　An　obvious　volcanic　curve　is　observed　between　the　ethylene　generation　rate　and　Fe　content,　and　1.0Fe/HZ5-HTS　exhibits　the　highest　ethylene　generation　rate　with　0.166　mmol　C2H4　s−1　gFe−1　over　different　Fe　loading,　which　is　twice　as　much　as　that　of　1.0Fe/HZ5-IWI.　According　to　various　characterizations,　isolated　Fe3+　species　and　carburized　Fe　species　are　active　sites,　and　the　better　catalytic　performance　over　1.0Fe/HZ5-HTS　is　ascribed　to　more　disperse　Fe　species　and　exposing　more　Fe　species　in　the　surface.　Besides,　the　lower　ethylene　desorption　temperature　and　higher　ethane　desorption　temperature　over　Fe/HZ5-HTS　could　suppress　the　overreaction　of　the　ethylene　to　generate　coke　and　increase　ethane　residence　reaction　time,　resulting　in　less　coke　deposition　and　facilitating　the　catalytic　performance.　©　2021　Wiley-VCH　GmbH