The invention discloses a steelmaking device and method by utilizing an electric arc furnace to absorb waste. The steelmaking device by utilizing the electric arc furnace to absorb the waste includesthe electric arc furnace, a combustible waste feeding device, a steel scrap feeding device and a feeding incineration tunnel, wherein the feeding incineration tunnel is connected with the electric arcfurnace in an airtight mode, and a combustion heating device used for heating the tunnel is arranged on the feeding incineration tunnel. According to the steelmaking device by utilizing the electricarc furnace to absorb the waste, high-temperature flue gas of the electric arc furnace is discharged from the feeding incineration tunnel connected with the electric arc furnace, and the combustion heating device is arranged on the feeding incineration tunnel, the scrap steel and the combustible waste are continuously fed into the electric arc furnace, the high-temperature flue gas ignites the combustible waste and accelerates full combustion of the combustible waste under the heating effect of the combustion heating device; the flue gas of the electric furnace, the combustion heating device and the combustible waste combustion are jointly used for heating the steel scrap fed into the electric furnace, and the combustible waste is absorbed while the power consumption of steelmaking is reduced; and the high temperature flue gas of the electric furnace, active combustion heating and the combustible waste combustion are used for preheating the steel scrap, part of the combustible waste isabsorbed, and the environment is improved.