Ferrovanadium nitride is a new type of vanadium-nitrogen (V-N) alloy additive. With the property being superior to that of vanadium iron and vanadium-nitrogen alloy, it can be widely used in high-strength steel threaded bars and other products. With precipitation strengthening of VN, its amount of vanadium addition can be reduced by 20-40% compared with vanadium iron. V/N (vanadium to nitrogen ratio) of ferrovanadium nitride is 4.0. which is closer to the ideal ratio of vanadium-nitrogen precipitation strengthening of 3.64 compared to 5.5 of vanadium-nitrogen alloy. Thus, the use of ferrovanadium nitride can give full play to VN precipitation strengthening effect in steel.