Surface　and　interface　engineering　of　composite　photocatalysts　are　effective　ways　to　enhance　the　dynamics　of　photo-generated　charge　carriers.　In　this　work,　SrTiO3/Ti3C2　MXene　(STO/TC)　Schottky　heterojunction　is　constructed　by　in-situ　growth　of　SrTiO3　(STO)　on　Ti3C2　MXene　(TC)　through　Sr(OH)2　etching　the　surfaces　of　TC.　This　in-situ　growth　strategy　not　only　creates　the　tight　chemically　bonded　interfaces　by　SrTiO3　nanoparticles　uniformly　anchoring　on　the　surface　of　two-dimensional　Ti3C2　MXene　nanosheets　for　promoting　the　photo-generated　charge　carrier　separation,　but　also　introduces　surface　Ti　vacancies　as　the　efficient　catalytic　active　sites　to　accelerate　the　charge　carrier　transfer　process　for　efficient　hydrogen　production.　The　photocatalytic　system　constructed　by　interface　and　surface　engineering　optimizes　the　photo-generated　charge　carrier　dynamics　and　refines　the　photocatalytic　hydrogen　evolution　performance　(6.8　times　higher　than　pristine　SrTiO3)　and　stability.　This　work　is　expected　to　provide　an　alternative　strategy　to　construct　highly　efficient　photocatalysts　with　hydrogen　evolution.