Automobile gear steel is mainly estimated by its cleanliness， hardenability and grain size. The total oxygen （T［O］） content is the main index for measuring the cleanliness of the steel. In Fushun Special Steel Company of Dongbei Special Group， high-level automobile gear steels with carbon content less than 0.25% and T［O］ content less than 15×10 -6 were produced by adjusting the deoxidation system， employing the reasonable slag system and manufacture process of EAF with ultra-high-power+LF+VD+CC， whose non-metallic inclusion totally met the re- quirement of the specification for a foreign user.