To　solve　the　problem　of　shrinkage　cracking,　the　need　for　intensive　reinforcement　and　a　large　number　of　steaming　equipment　of　orthotropic　steel　bridge　deck　pavement　caused　by　large　area　of　cast-in-situ　ultra　high　performance　concrete　(UHPC),　a　new　type　of　steel　bridge　deck　pavement　using　prefabricated　and　cast-in-situ　UHPC　slab　was　presented.　Through　local　specimen　tests　on　the　interfaces　between　steel　and　prefabricated　UHPC　slab,　steel　and　cast-in-situ　UHPC　slab,　prefabricated　and　cast-in-situ　UHPC　slab,　the　bonding　properties　of　the　key　interfaces　of　steel　deck　pavement　with　prefabricated　and　cast-in-situ　UHPC　slab　were　revealed.　The　load　effects　of　steel　deck　pavement　with　prefabricated　and　cast-in-situ　UHPC　slab　under　vehicle　load　were　determined　by　full-size　segment　specimen　test　and　finite　element　analysis.　The　results　show　that　the　tensile　and　shear　failures　of　the　interface　between　steel　and　prefabricated　UHPC　slab　occur　at　the　bonding　surface　of　the　viscose　layer　and　prefabricated　UHPC　slab,　the　normal　tensile　and　tangential　shear　capacity　can　be　conservatively　5.　2　MPa　and　8.　7　MPa;　when　the　stud　spacing　is　between　150　and　320　mm,　the　stud　intensity　has　little　effect　on　the　shear　capacity　of　interface　between　steel　and　cast-in-situ　UHPC　slab.　The　stud　bearing　capacity　in　cast-in-situ　UHPC　slab　can　be　calculated　according　to　the　Chinese　code,　and　the　shear　stiffness　can　be　conservatively　set　at　110.　0　kN　·　mm-1;　The　shear　strength　of　prefabricated　and　cast-in-situ　UHPC　interface　can　be　respectively　increased　by　23%　and　20%　by　gouging　the　interface　and　steam　curing　the　wet　joints.　The　shear　strength　of　the　prefabricated　and　cast-in-situ　UHPC　interface　can　be　conservatively　2.　4　MPa;　Under　the　action　of　3　times　of　vehicle　design　load,　the　stress　of　UHPC　slab　and　steel-UHPC　interface　is　less　than　the　allowable　stress.　Therefore,　the　steel　bridge　deck　pavement　scheme　using　prefabricated　and　cast-in-situ　UHPC　slab　proposed　in　this　paper　is　feasible.　©　2022　Xi＇an　Highway　University.　All　rights　reserved.