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 over2500°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, even and compact structure, good anti oxidation and high mechanical strength.