A method for manufacturing a hot-forged member includes heating an unheated material for hot forging in a furnace to a hot forging temperature; bonding a heat-resistant insulation material to at least a part of a surface of a material for forging removed from the furnace to obtain a material to be hot forged; and compressing a part or all of the material to be hot forged into a predetermined shape using any of a die, an anvil, and a tool.