According to the forming feature of cone parts with flange, the stamping theory and trial production result, techniques were calculated and analyzed to find out the cause of high wastrel rate of cone parts with flange during drawing and forming process. By adjusting the blank holder force to 195260kN with hydraulic equipment, increasing the lubrication of the plastic paper and changing the twice-forming process into once process with low-cost material 08AL,a good forming manner of  the cone part in manufacturing process was obtained. The experience from the three-year mass production of the parts with the wide flange and medium-depth cone parts approves that the qualified rate of the parts can be increased by taking proper measures to ensure that one of two factors, that is the drawing coefficient and relative height of the parts， to meet the standard.