Research has been conducted on the problem of iron-based spray-welded drill pipe wear-resistant banding process.The analysis shows that the main reasons for the falling off of ironbased spray welding deposited layer of drill pipe joint are spray welding process defects, incomplete penetration, poor adhesion and small gap. In view of the causes of falling off, the problem of falling off of iron-based spray welding layer is analyzed and solved from two aspects of welding process and welding materials. Finally,the iron-based spray welding alloy with the same composition is prepared into flux cored wire, and MAG（melting electrode active gas shielded arc welding） is used to completely solve the problem of falling off of iron-based spray welding layer, reduce drilling sticking accidents and reduce costs.