Based on serial testing,we combine information analysis and maximum likelihood method to discriminate ovarian cyst in early stage and develop the multivariate statistical application in the clinical into software by use of Delphi7.0,on the basis of the two method's authenticity and reliability evaluation.We find that the discriminant accuracy of both methods are moderate and they have good consistency.The serial testing improves diagnostic specificity and made up for the lack of single statistical method.Th...