Abstract: Dual—layer fusion bonded epoxy(Dual—layer FBE)anticorrosion system has caught attentions of pipe— line engineers for its excellent properties and comparative low cost.This paper introduces the layer structures, technical indexes, production process, advantages and application categories of the dual layer FBE system.Some applications of the dual—layer FBE system in gas pipeline proj eet in China and abroad are presented.The coating companies for the dual—layer FBE are given in detail.An analysis shows that the core technique for this system is the epoxy powder for the out layer.The progress and production status for the outer FBE coating are discussed.