In the actual use process, both ends and welding parts are prone to leakage. Once leakage occurs, it is difficult to repair. The main reason is that the stainless steel hose wall is very thin, only 0.3mm, and welding with the joint requires high welding technology. It is neither convenient nor economical to send it back to the original manufacturer for maintenance, and the maintenance cost is about 20%-30% of the original value. The stainless steel corrugated metal hose was improved and repaired by non-welding method, and good results were obtained.