The invention belongs to a surface coating layer coating technology, and provides a novel method for producing a zinc-containing Al2O3 and SiO2 film on the surface of a Fe-based material in a low-dew point environment. Zn and ZnO mixed powder is heated in a closed environment to make a constant low oxygen pressure generated in a closed space, so metal with the oxide decomposition pressure being less than the low oxygen pressure and Al and Si in the Fe-based alloy are selectively oxidized. The method makes a Al2O3 and SiO2 protection film generated on the surface of the Fe-based material and metallic Zn generated after condensation of Zn steam cover a matrix area not covered with the oxide film, realizes anodic protection, and improves the corrosion resistance of the Fe-based material.