A method for producing steel includes: (a) a step of adding the first group of alloys to
molten steel having an amount of dissolved
oxygen of 0.0050
mass % or more; (b) a step of, after the step of (a), adding deoxidizer to the
molten steel for deoxidation; (c) a step of, after the step of (b), adding the second group of alloys to the deoxidized
molten steel; and (d) a step of, after the step of (c), adding REM to the molten steel, wherein amounts of
oxygen Ob introduced from the first group of alloys (
mass %) and amounts of
oxygen Oa introduced from the second group of alloys (
mass %) satisfy [Oa≤0.00100], [Ob+Oa≥0.00150], and [Ob / Oa≥2.0], and satisfy a formula [0.05≤REM / T.O≤0.5] after the step of (d).