Abstract: Coiled tubing has been widely used in oil and gas fields both domestic and overseas at present. It is mainly used for operations of drilling, downhole operation and oil and gas production, such as sand-flushing, flowback inducing, acidizing, drainage gas recovery, drilling, and fishing fallen objects. With the application of coiled tubing more and more widely, coiled tubing often brakes, but whether it happens in casing or tubing, currently, there is no molding processing tools and reference case both domestic and overseas. A case study was made in the Yakela condensate gas field. Downhole corrosion salvage craft was applied to deal with coiled tubing, which could provide a reference for handling such problems in the future.