The　purpose　of　this　paper　is　to　study　the　influence　of　the　steel　fiber　distribution　on　transport　properties　before　and　after　UHPC　specimens　are　damaged.　By　adjusting　the　dosage　of　superplasticizer,　UHPC　cylindrical　specimens　with　steel　fibers　non-uniform　distribution　along　the　pouring　direction　were　obtained.　The　fiber　distribution　coefficient　was　used　to　characterize　the　distribution　of　steel　fibers.　The　damage　caused　by　splitting　load　is　characterized　by　crack　characteristics,　crack　opening　displacement　(COD),　and　penetrable　porosity.　Gas　permeability　and　sorptivity　were　carried　out　to　evaluate　the　transport　properties　of　UHPC　specimens　before　and　after　pre-cracking.　The　results　showed　that　with　the　increase　of　steel　fiber　content,　the　splitting　tensile　strength　of　UHPC　gradually　increased,　and　penetrable　porosity,　gas　permeability,　and　sorptivity　all　showed　a　decreasing　trend.　When　UHPC　was　damaged,　the　total　crack　area　had　an　obvious　correlation　with　the　steel　fiber　content.　The　transport　properties　were　closely　related　to　residual　COD(CODres)　and　steel　fiber　content.　Both　sorptivity　and　gas　permeability　could　characterize　the　transport　properties　of　UHPC,　but　the　former　is　more　sensitive　to　low　deformation　damage,　and　the　latter　is　a　better　indicator　to　describe　the　degradation　of　UHPC　durability　under　high　deformation　levels.　The　non-uniform　distribution　of　steel　fibers　had　an　adverse　effect　on　the　overall　damage　indicator　of　UHPC,　but　it　was　beneficial　to　the　impermeability　indicator.