Abstract: The rapid and optimum design of aircraft geometry configuration is a key to aircraft geometry configuration,which directly effects the quality and period of preliminary design.The paper briefly introduces the rapid and optimum design of configuration models and two software packages for engineering analysis of configuration models.The GDPP software package has been running for two years and good results have been obtained in practical design.Now,together with its common data base,GDPP has become a practical CAD software package shared by many specialist groups.