This　paper　proposes　a　new　fast　current-limiting　HVDC　circuit　breaker　scheme,　which　is　based　on　the　existing　hybrid　HVDC　circuit　breaker.　The　new　HVDC　circuit　breaker　topology　consists　of　a　main　current　branch　(mechanical　switch　K,　main　submodule　(MSM)),　a　transferring　submodule　(TSM)　and　an　energy-dissipation　module　(MOV　branch).　The　TSM　adopts　a　half　diode-bridge　topology,　and　it　is　in　series　with　a　fault　current-limiting　submodule　(FCLSM),　the　FCLSM　consists　of　a　half　diode-bridge,　a　current-limiting　resistor　and　a　MOV　unit.　This　new　HVDC　circuit　breaker　scheme　can　reduce　the　use　of　diode　with　50%　than　before,　and　improve　the　economy　effect　largely.　The　proposed　HVDC　circuit　breaker　scheme　is　simulated　by　PSCAD/EMTDC　finally.　The　simulation　results　show　that　the　HVDC　circuit　breaker　scheme　can　lower　the　DC　fault　current　peak　value　(decreased　by　14%)　effectively　than　before,　make　the　duration　time　of　the　fault　current　and　MOV　absorption　energy　decreased　with　16.2%　than　previous.　©　2018　IEEE.