A method for producing H-shaped steel, the method comprising: a rough rolling step; an intermediate rolling step; and a finish rolling step, wherein: the rough rolling step comprises: an edging rolling step of rolling and shaping a material to be rolled (A) into a predetermined almost dog-bone shape; and a flat rolling step of performing rolling of a web part by rotating the material to be rolled (A) after completion of the edging rolling step by 90° or 270°; a thickness of the web part rolled in the flat rolling step is set to a predetermined thickness thicker than a web part thickness when the intermediate rolling step is started; characterized in that a rectangular cross-section slab having a thickness of 290 mm or more and 310 mm or less is used as a raw material; upper and lower caliber rolls of at least one caliber of calibers configured to perform the flat rolling step comprise recessed parts configured to form a raised part at a middle of the web part of the material to be rolled (A), the recessed parts being provided at roll barrel length middle parts of the upper and lower caliber rolls; and a width (L1) of the raised part formed in the flat rolling step is set to 25% or more and 50% or less of a web part inner size (L2) of the material to be rolled (A). a rough rolling step; an intermediate rolling step; and a finish rolling step, wherein: the rough rolling step comprises: an edging rolling step of rolling and shaping a material to be rolled (A) into a predetermined almost dog-bone shape; and a flat rolling step of performing rolling of a web part by rotating the material to be rolled (A) after completion of the edging rolling step by 90° or 270°; a thickness of the web part rolled in the flat rolling step is set to a predetermined thickness thicker than a web part thickness when the intermediate rolling step is started; characterized in that a rectangular cross-section slab having a thickness of 290 mm or more and 310 mm or less is used as a raw material; upper and lower caliber rolls of at least one caliber of calibers configured to perform the flat rolling step comprise recessed parts configured to form a raised part at a middle of the web part of the material to be rolled (A), the recessed parts being provided at roll barrel length middle parts of the upper and lower caliber rolls; and a width (L1) of the raised part formed in the flat rolling step is set to 25% or more and 50% or less of a web part inner size (L2) of the material to be rolled (A). the rough rolling step comprises: an edging rolling step of rolling and shaping a material to be rolled (A) into a predetermined almost dog-bone shape; and a flat rolling step of performing rolling of a web part by rotating the material to be rolled (A) after completion of the edging rolling step by 90° or 270°; a thickness of the web part rolled in the flat rolling step is set to a predetermined thickness thicker than a web part thickness when the intermediate rolling step is started; characterized in that a rectangular cross-section slab having a thickness of 290 mm or more and 310 mm or less is used as a raw material; upper and lower caliber rolls of at least one caliber of calibers configured to perform the flat rolling step comprise recessed parts configured to form a raised part at a middle of the web part of the material to be rolled (A), the recessed parts being provided at roll barrel length middle parts of the upper and lower caliber rolls; and a width (L1) of the raised part formed in the flat rolling step is set to 25% or more and 50% or less of a web part inner size (L2) of the material to be rolled (A). <EOS>