Abstract: During the fire, different temperatures, fire duration and extinguishing methods, and different equipment materials result in different damage degrees and types of post-fire equipment, and changes of the microstructure and properties of equipment material. The damage evaluation method of the post-fire equipment commonly fabricated from carbon steel, low-alloyed steel and stainless steel and the research status at home and abroad of damage evaluation of mechanical properties and corrosion resistance of its material are summarized. The existing problems in the damage evaluation of the post-fire equipment and the future research direction are discussed.