A method for manufacturing a grain oriented electrical steel sheet, comprising a series of steps of: preparing a steel slab having a composition consisting of by mass %, C: 0.08 % or less, Si: 2.0 % to 8.0 %, Mn: 0.005 % to 1.0 %, and A) at least one type of inhibitor selected from AIN, MnS, and MnSe, in which, if one of the selected inhibitors is AIN, the composition further consists of Al: 0.01 % to 0.065% and N: 0.005% to 0.012%, and if one of the selected inhibitors is MnS, the composition further consists of S: 0.005 % to 0.03%, and if one of the selected inhibitors is MnSe, the composition further consists of Se: 0.005 % to 0.03%, or B) Al: less than 0.0100 %, S: less than 0.0050%, N: less than 0.0050%, Se: less than 0.0050%; and optionally at least one element selected from Ni: 0.03 % to 1.50 %, Sn: 0.01 % to 1.50 %, Sb: 0.005 % to 1.50 %, Cu: 0.03 % to 3.0 %, P: 0.03 % to 0.50 %, Mo: 0.005 % to 0.1 %, and Cr: 0.03 % to 1.50 %, and balance being Fe and incidental impurities; rolling the steel slab to obtain a steel sheet having a final sheet thickness; and subjecting the steel sheet to decarburization annealing; and coating the steel sheet with annealing separator mainly composed of MgO, and final annealing in this order, the method further comprises carrying out the decarburization annealing as continuous annealing including: heating the steel sheet to a temperature in the range of 700°C to 750°C at heating rate of 50°C/second or higher at least in a temperature range of 500°C to 700°C in an atmosphere having oxidation potential P(H 2 O)/P(H 2) equal to or lower than 0.05; then cooling the steel sheet to a temperature in the range of 400°C to below 700°C in an atmosphere having oxidation potential P(H 2 O)/P(H 2) equal to or lower than 0.05; and reheating the steel sheet to a temperature in the range of 800°C to 900°C and retaining the steel sheet at the temperature for soaking in an atmosphere having oxidation potential P(H 2 O)/P(H 2) equal to or higher than 0.3. preparing a steel slab having a composition consisting of by mass %, C: 0.08 % or less, Si: 2.0 % to 8.0 %, Mn: 0.005 % to 1.0 %, and A) at least one type of inhibitor selected from AIN, MnS, and MnSe, in which, if one of the selected inhibitors is AIN, the composition further consists of Al: 0.01 % to 0.065% and N: 0.005% to 0.012%, and if one of the selected inhibitors is MnS, the composition further consists of S: 0.005 % to 0.03%, and if one of the selected inhibitors is MnSe, the composition further consists of Se: 0.005 % to 0.03%, or B) Al: less than 0.0100 %, S: less than 0.0050%, N: less than 0.0050%, Se: less than 0.0050%; and optionally at least one element selected from Ni: 0.03 % to 1.50 %, Sn: 0.01 % to 1.50 %, Sb: 0.005 % to 1.50 %, Cu: 0.03 % to 3.0 %, P: 0.03 % to 0.50 %, Mo: 0.005 % to 0.1 %, and Cr: 0.03 % to 1.50 %, and balance being Fe and incidental impurities; C: 0.08 % or less, Si: 2.0 % to 8.0 %, Mn: 0.005 % to 1.0 %, and A) at least one type of inhibitor selected from AIN, MnS, and MnSe, in which, if one of the selected inhibitors is AIN, the composition further consists of Al: 0.01 % to 0.065% and N: 0.005% to 0.012%, and if one of the selected inhibitors is MnS, the composition further consists of S: 0.005 % to 0.03%, and if one of the selected inhibitors is MnSe, the composition further consists of Se: 0.005 % to 0.03%, or B) Al: less than 0.0100 %, S: less than 0.0050%, N: less than 0.0050%, Se: less than 0.0050%; A) at least one type of inhibitor selected from AIN, MnS, and MnSe, in which, if one of the selected inhibitors is AIN, the composition further consists of Al: 0.01 % to 0.065% and N: 0.005% to 0.012%, and if one of the selected inhibitors is MnS, the composition further consists of S: 0.005 % to 0.03%, and if one of the selected inhibitors is MnSe, the composition further consists of Se: 0.005 % to 0.03%, or B) Al: less than 0.0100 %, S: less than 0.0050%, N: less than 0.0050%, Se: less than 0.0050%; rolling the steel slab to obtain a steel sheet having a final sheet thickness; and subjecting the steel sheet to decarburization annealing; and coating the steel sheet with annealing separator mainly composed of MgO, and final annealing in this order, heating the steel sheet to a temperature in the range of 700°C to 750°C at heating rate of 50°C/second or higher at least in a temperature range of 500°C to 700°C in an atmosphere having oxidation potential P(H 2 O)/P(H 2) equal to or lower than 0.05; then cooling the steel sheet to a temperature in the range of 400°C to below 700°C in an atmosphere having oxidation potential P(H 2 O)/P(H 2) equal to or lower than 0.05; and reheating the steel sheet to a temperature in the range of 800°C to 900°C and retaining the steel sheet at the temperature for soaking in an atmosphere having oxidation potential P(H 2 O)/P(H 2) equal to or higher than 0.3.