Steelmaking deoxidizer can quickly slag, shorten the reduction time, improve the recovery of alloy elements, and achieve the effects of refining, deoxidation, degassing and impurity removal. The product uses silicon, aluminum, barium, calcium, carbon and other strong reducing elements to reduce the oxidizing properties of the slag; and is equipped with an appropriate proportion of high-purity active alkali to increase the alkalinity of the slag layer, thereby creating a high Alkaline, strong reducing atmosphere. The use of this product can greatly replace the use of aluminum wire and calcium-based alloys, save smelting costs and improve overall benefits, help to improve the thermal cracking resistance, high temperature oxidation resistance and corrosion resistance of steel, and increase the ductility and machinability of steel And polishing performance, improve the product yield rate. The product has a uniform almond shape with bright color and silver luster on the surface. In the production process, raw material passivation and slagging outside the furnace are used to optimize the use efficiency and use effect of alloying elements, and to minimize burn damage and smoke generation.