Chemical mechanical equipment is an essential facility for chemical production.Due to the particularity of chemical production,some elements may have certain corrosivity to equipment,so chemical mechanical equip-ment must undergo anti-corrosion treatment to ensure the stable operation of equipment.This article focuses on the application of anti-corrosion design in chemical mechanical equipment.Firstly,it analyzes the principle of anti-corrosion design,then analyzes the necessity of anti-corrosion design in chemical equipment,and finally analyzes the problems in the application of anti-corrosion design and their countermeasures,for reference and models by rel-evant units.