The economical automobile has been minimal impact in the automobile industrysince china joining the WT). The economical automobile inclusfry of Cllina has been ina state of explosive growth and increased industry concentration since 2000. Withproduction increase and industrial concentration，maintenance rate of economicalautomobile basis parts is increasing year by year, according to economical automobileaftermarket data statistics, maintenance rate of economical automobile basis parts forinstance engine, clutch, the front axle, the rear axle, brakes, reducer, and so on are muchhigher than those of the high-end commercial vehicles and passenger cars, particularly,maintenance rate of clutch always occupies the top, which affects the efficiency of theenterprises and economical automobile quality itrtage. Therefore, economicalautomobile manufacturers of China need have related basic research and innovation inthe basic parts of economic automobile, for example clutch, in this situation, authorintroduces the main problem of diaphragm spring clutch in economical automobile(hereinafter referred to this clutch) and the research ideas. Through failure investigation and statistical analysis of economical automobile diaphragm spring clutch,educing the major problems of economical automobile diaphragm spring clutch,and also offering a detailed study of ideas for the major issue.