This document stipulates the general provisions, technical requirements, test methods, inspection rules and marking of hot-dip galvanized aluminum mg rare earth alloy platings for steel components of power transmission and transformation engineering. Hot-dip galvanized aluminum mg rare earth alloy platings applicable to steel components such as steel towers, substation structure brackets and their fasteners used in power transmission and transformation engineering. Among them, a series of normative reference documents are listed. The terms and definitions section clearly defines the definition of hot-dip galvanized aluminum mg rare earth alloy platings, as well as the classification criteria for atmospheric corrosion grades. The general regulations section divides alloy platings into two categories according to the content of aluminum elements in them.