The work aims to study structure as well as friction and wear behavior of FeAlNbB coating by discussing preparation method of the coating. FeAlNbB coating was prepared by adopting supersonic electric arc spraying technology. Structure and phase composition of FeAlNbB coating were analyzed by using SEM and X-ray diffractometer. Hardness and tribological behavior of the FeAlNbB coating were studied by using microhardness tester and friction-wear tester. The FeAlNbB coating was mainly composed of α-Fe, Fe3Al and FeAl phases. Average hardness of the coating was 700HV. Provided with test parameters, friction coefficient of the coating ranged between 0.2~0.4, wear resistance of the coating was 12~33 times as high as that of 20# steel, and wear mechanism of the coating was mainly plowing effect and abrasive wear. The FeAlNbB coating prepared by supersonic electric arc spraying is compact and well bonded to the substrate. There is no crystalline structure in the coating, but hardness and wear resistance of the coating are equivalent to that of FeAlNbB amorphous coating.