A manufacturing method of a grain-oriented electrical steel sheet, comprising: heating a slab, based on 100 wt% of a total composition thereof, including C at 0.01 wt% to 0.1 wt%, Si at 2.0 wt% to 4.0 wt%, Mn at 0.01 wt% to 0.30 wt%, Al at 0.005 wt% to 0.040 wt%, Sn at 0.005 wt% to 0.20 wt%, S at 0.0005 wt% to 0.020 wt%, Se at 0.0005 wt% to 0.020 wt%, P at 0.005 wt% to 0.1 wt%, N at 0.0005 wt% to 0.015 wt%, Ti at 0.0001 wt% to 0.020 wt%, V at 0.0001 wt% to 0.020 wt%, Nb at 0.0001 wt% to 0.020 wt%, B at 0.0001 wt% to 0.020 wt%, optionally including Cr at 0.001 wt% to 0.20 wt%, Ni at 0.001 wt% to 0.20 wt%, Cu at 0.001 wt% to 0.90 wt%, Mo at 0.002 % to 0.1 wt%, Sb at 0.005 wt% to 0.20 wt%, Bi at 0.0005 wt% to 0.1 wt%, Pb at 0.0001 wt% to 0.02 %, As at 0.0001 wt% to 0.02 wt%, or a combination thereof, and the remaining portion including Fe and other impurities, and then hot rolling it to prepare a hot-rolled steel sheet; annealing the hot-rolled steel sheet; after the hot-rolled steel sheet is annealed, cooling the hot-rolled steel sheet, and then cold rolling it to prepare a cold-rolled steel sheet; decarburization-annealing the cold-rolled steel sheet and then nitriding-annealing it, or simultaneously performing the decarburization-annealing and the nitriding-annealing; and final-annealing the decarburization-annealed and nitriding-annealed steel sheet, wherein the annealing of the hot-rolled steel sheet includes heating the steel sheet, primary-soaking the heated steel sheet, cooling the primary-soaked steel sheet and then secondary-soaking it, and cooling the secondary-soaked steel sheet, and the heating progresses to a primary soaking temperature at 15 °C/s or more. heating a slab, based on 100 wt% of a total composition thereof, including C at 0.01 wt% to 0.1 wt%, Si at 2.0 wt% to 4.0 wt%, Mn at 0.01 wt% to 0.30 wt%, Al at 0.005 wt% to 0.040 wt%, Sn at 0.005 wt% to 0.20 wt%, S at 0.0005 wt% to 0.020 wt%, Se at 0.0005 wt% to 0.020 wt%, P at 0.005 wt% to 0.1 wt%, N at 0.0005 wt% to 0.015 wt%, Ti at 0.0001 wt% to 0.020 wt%, V at 0.0001 wt% to 0.020 wt%, Nb at 0.0001 wt% to 0.020 wt%, B at 0.0001 wt% to 0.020 wt%, optionally including Cr at 0.001 wt% to 0.20 wt%, Ni at 0.001 wt% to 0.20 wt%, Cu at 0.001 wt% to 0.90 wt%, Mo at 0.002 % to 0.1 wt%, Sb at 0.005 wt% to 0.20 wt%, Bi at 0.0005 wt% to 0.1 wt%, Pb at 0.0001 wt% to 0.02 %, As at 0.0001 wt% to 0.02 wt%, or a combination thereof, and the remaining portion including Fe and other impurities, and then hot rolling it to prepare a hot-rolled steel sheet; annealing the hot-rolled steel sheet; after the hot-rolled steel sheet is annealed, cooling the hot-rolled steel sheet, and then cold rolling it to prepare a cold-rolled steel sheet; decarburization-annealing the cold-rolled steel sheet and then nitriding-annealing it, or simultaneously performing the decarburization-annealing and the nitriding-annealing; and final-annealing the decarburization-annealed and nitriding-annealed steel sheet, wherein the annealing of the hot-rolled steel sheet includes heating the steel sheet, primary-soaking the heated steel sheet, cooling the primary-soaked steel sheet and then secondary-soaking it, and cooling the secondary-soaked steel sheet, and the heating progresses to a primary soaking temperature at 15 °C/s or more. <EOS>