Abstract:According to the actual situation of severe corrosion of power grid equipments in typical damp heat climate in southwestern China, taking a 110 kV substation in Sichuan province for example, anti corrosion engineering of this substation is designed and carried out to achieve the goal of "10 year guarantee against rusting". This project is reasonable in design, strict in operation, efficient in supervision, reliable in quality and remarkable in effect. The standard process and typical experiences of anti corrosion engineering in damp heat climate are summarized from this project, which have been applied in whole Sichuan power grids.