Steelmaking method capable of preventing steel ladle from crusting

The invention provides a steelmaking method for preventing steel ladle crusting, which comprises the following steps: molten iron and scrap steel are loaded into a converter for converter blowing to obtain primary molten steel, the mass ratio of the molten iron to the scrap steel is (7.4-7.8): 1, and 34.5-37.1 kg of lime per ton of steel, 10.4-11.4 kg of magnesite per ton of steel and 3.6-4.3 kg of iron ore per ton of steel are added in the converter blowing process; and tapping the primary molten steel, and immediately adding lime, fluorite and calcium carbide into a steel ladle after tapping is completed. When the method provided by the invention is adopted for steelmaking, in the converter blowing process, the slag component in primary molten steel is controlled to be a SiO2-CaO-Al2O3-MgO quaternary phase by controlling the raw materials loaded into the converter and the proportion, and CaO is added in the later tapping period of the converter, so that the dephosphorization capability ...