In　this　work,　the　shear　and　tensile　tests　of　bonding　interface　were　carried　out　for　the　epoxy　resin　bonded　steel-precast　UHPC　slab　composite　structures.　The　test　results　showed　that　the　epoxy　resin　adhesive　and　the　UHPC　material　themselves　in　the　composite　specimen　remain　intact.　The　failure　location　of　the　specimens　under　shearing　is　at　the　bonding　interface　between　the　steel　plate　and　the　adhesive,　while　for　the　tensile　specimens　the　failure　location　is　at　the　bonding　interface　between　UHPC　slab　and　adhesive.　Both　of　the　failure　modes　are　brittle,　characterized　by　rapid　loss　of　the　bearing　capacity　of　specimens　due　to　the　slippage　or　separation　of　bonding　interface.　The　shear　strength　may　not　be　greatly　affected　by　the　bond　area,　and　the　measured　average　value　and　design　value　of　shear　strength　are　2.　59MPa　and　1.　36MPa,　respectively.　The　tensile　strength　is　related　to　the　bond　area.　When　the　size　of　tensile　specimen　is　increased　from　160mm　to　200mm,　the　measured　tensile　strength　decreases　from　2.　74MPa　to　1.　86MPa　with　a　decrease　rate　of　30%　,　and　the　design　value　of　tensile　strength　is　0.　78MPa.　In　addition,　the　steel　fiber　volume　content　of　1　~2%　in　UHPC　has　little　effect　on　the　tensile　strength.　Furthermore,　a　finite　element　model　of　steel-UHPC　composite　slab　was　established　and　analyzed.　The　analysis　results　showed　that　under　vehicle　loads　the　bonding　layer　is　mainly　subjected　to　the　shear　force,　and　it　shall　be　most　unfavorable　in　the　transverse　direction　of　bridge.　The　maximum　transverse　shear　stress　and　vertical　tensile　stress　in　the　most　unfavorable　load　conditions　are　1.　UMPa　and　0.　15MPa,　which　are　lower　than　the　design　value　of　shear　strength　and　that　of　tensile　strength　of　epoxy　resin　adhesive　respectively.　Based　on　the　test　and　analysis　results　and　in　view　of　the　brittle　failure　characteristics　of　binder,　it　is　recommended　that　the　emphasis　shall　be　put　on　the　treatment　of　bonding　interfaces　and　particular　emphasis　on　the　shear　strength　issue.　©　2023　Editorial　Office　of　China　Civil　Engineering　Journal.　All　rights　reserved.