Substituting　hydrogen　utilization　for　coke　consumption　is　the　main　research　field　for　the　development　of　iron　and　steel　manufacturing.　Understanding　the　reaction　kinetics　of　the　reduction　of　hematite　by　hydrogen　is　essential　for　the　rational　utilization　of　hydrogen　resources　and　the　development　of　corresponding　technologies.　In　the　present　study,　the　reduction　process　of　Brazilian　hematite　with　hydrogen　(volume　concentration　from　10%　to　25%)　was　conducted　in　a　micro-fluidized　bed　at　600-800　degrees　C.　Results　indicated　that　the　external　diffusion　could　be　eliminated　as　the　gas　flow　rate　is　higher　than　400　mL/min　(at　NTP).　The　reaction　rate　of　the　reduction　of　hematite　increased　with　increasing　temperature　and　inlet　H-2　concentration.　In　order　to　analyze　the　multistep　reaction　kinetics,　a　multistep　analysis　method,　which　could　be　used　to　divide　the　reduction　of　hematite　into　three　stages,　was　established　and　verified　by　various　detections　of　reaction　products.　The　reaction　rates　of　Fe2O3　-＞　Fe3O4,　as　the　conversion　Xis　less　than　0.11,　and　Fe3O4　-＞　FeO　were　controlled　by　phase　boundary,　and　then　progressively　transformed　into　gas　internal　diffusion　for　FeO-Fe.　The　apparent　activation　energies　of　Fe2O3　-＞　Fe3O4,　Fe3O4　-＞　FeO,　and　FeO　-＞　Fe　were　determined　as　13.01-21.23　kJ/mol,　26.51　+/-　0.56　kJ/mol,　and　11.46　+/-　0.10　kJ/mol,　respectively.　(C)　2020　Hydrogen　Energy　Publications　LLC.　Published　by　Elsevier　Ltd.　All　rights　reserved.