A method for manufacturing a hot stamped body, the method comprising: hot-rolling a slab containing chemical components which consist of, by mass%, 0.18% to 0.35% of C, 1.0% to 3.0% of Mn, 0.01% to 1.0% of Si, 0.001% to 0.02% of P, 0.0005% to 0.01% of S, 0.001% to 0.01% of N, 0.01% to 1.0% of Al, 0.005% to 0.2% of Ti, 0.0002% to 0.005% of B, and 0.002% to 2.0% of Cr, and optionally one or more from 0.002% to 2.0% of Mo, 0.002% to 2.0% of Nb, 0.002% to 2.0% of V, 0.002% to 2.0% of Ni, 0.002% to 2.0% of Cu, 0.002% to 2.0% of Sn, 0.0005% to 0.0050% of Ca, 0.0005% to 0.0050% of Mg, and 0.0005% to 0.0050% of REM and the balance of Fe and inevitable impurities, to obtain a hot-rolled steel sheet; coiling the hot-rolled steel sheet which is subjected to hot-rolling; cold-rolling the coiled hot-rolled steel sheet to obtain a cold-rolled steel sheet; continuously annealing the cold-rolled steel sheet which is subjected to cold-rolling to obtain a steel sheet for hot stamping; and performing hot stamping by heating the steel sheet for hot stamping which is continuously annealed so that a highest heating temperature is equal to or higher than Ac 3 °C, and forming a vertical wall, wherein the continuous annealing includes: heating the cold-rolled steel sheet to a temperature range of equal to or higher than Ac 1 °C and lower than Ac 3 °C; cooling the heated cold-rolled steel sheet from the highest heating temperature to 660°C at a cooling rate of equal to or less than 10 °C/s; and holding the cooled cold-rolled steel sheet in a temperature range of 550°C to 660°C for one minute to 10 minutes. hot-rolling a slab containing chemical components which consist of, by mass%, 0.18% to 0.35% of C, 1.0% to 3.0% of Mn, 0.01% to 1.0% of Si, 0.001% to 0.02% of P, 0.0005% to 0.01% of S, 0.001% to 0.01% of N, 0.01% to 1.0% of Al, 0.005% to 0.2% of Ti, 0.0002% to 0.005% of B, and 0.002% to 2.0% of Cr, and optionally one or more from 0.002% to 2.0% of Mo, 0.002% to 2.0% of Nb, 0.002% to 2.0% of V, 0.002% to 2.0% of Ni, 0.002% to 2.0% of Cu, 0.002% to 2.0% of Sn, 0.0005% to 0.0050% of Ca, 0.0005% to 0.0050% of Mg, and 0.0005% to 0.0050% of REM and the balance of Fe and inevitable impurities, to obtain a hot-rolled steel sheet; coiling the hot-rolled steel sheet which is subjected to hot-rolling; cold-rolling the coiled hot-rolled steel sheet to obtain a cold-rolled steel sheet; continuously annealing the cold-rolled steel sheet which is subjected to cold-rolling to obtain a steel sheet for hot stamping; and performing hot stamping by heating the steel sheet for hot stamping which is continuously annealed so that a highest heating temperature is equal to or higher than Ac 3 °C, and forming a vertical wall, wherein the continuous annealing includes: heating the cold-rolled steel sheet to a temperature range of equal to or higher than Ac 1 °C and lower than Ac 3 °C; cooling the heated cold-rolled steel sheet from the highest heating temperature to 660°C at a cooling rate of equal to or less than 10 °C/s; and holding the cooled cold-rolled steel sheet in a temperature range of 550°C to 660°C for one minute to 10 minutes. heating the cold-rolled steel sheet to a temperature range of equal to or higher than Ac 1 °C and lower than Ac 3 °C; cooling the heated cold-rolled steel sheet from the highest heating temperature to 660°C at a cooling rate of equal to or less than 10 °C/s; and holding the cooled cold-rolled steel sheet in a temperature range of 550°C to 660°C for one minute to 10 minutes.