Graphite electrode is made of high-quality low ash materials, like the petroleum coke, needle coke and coal pitch. After experiencing calcinations, burdening, kneading, forming, baking and pressure impregnation, it is graphitized in a high temperature of over 2500°C, and then treated with machining. This kind of product is widely used for steel-making, yellow phosphorus, industrial silicon, other alloys and non-metallic materials of electric arc furnace and hot stove. This product is characterized by low resistivity, good electrical conductivity, low ash, compact structure, good anti oxidation and high mechanical strength.