To provide a recycling method of an electric furnace dust, which detoxifies dioxine included in dust generated in filtering an exhaust gas discharged from an electric furnace by a dust collector, and efficiently classifies the dust by a classifier.

The recycling method of the electric furnace dust includes: filtering the exhaust gas discharged from the electric furnace X by the dust collector S; classifying the dust discharged from the dust collector S into the dust of high density including iron oxide and the like, and the dust of low density including zinc and the like by the classifier B; and returning the dust of high density including iron oxide and the like to the electric furnace X. The dust discharged from the dust collector S is heated by a microwave processing device 1, and then distributed to the classifier.