Abstract: Aiming at utilizing wastes and by-products,the conception of 'co-production of sulfuric acid, titanium pigment and iron and steel' is put forward based on the existing iron & steel and titanium pigment industries in Panzhihua,and the feasibility of reutilizing by-products and wastes generated in the two production processes including waste acid,blast furnace slag,ironmaking and steelmaking afterheat, dilute titaniferous solution,copperas,and red slag is analyzed.It can be concluded that the co-production of sulfuric acid,titanium pigment and iron and steel is a good way to realize efficient utilization and clean production of iron,sulfur and titanium resources.It is suggested that a green industry demonstration base be established in Panzhihua.