Objective:Matlab R2013a was adopted to analyze the composition principles of formulae containing Rhapontici Radix in Dictionary of Chinese Medicine Prescription

and to provide a basis for clinical medication of Rhapontici Radix and expand its range of application. Method:To collect data of the prescription containing Rhapontici Radix in Dictionary of Chinese Medicine Prescription

logging the data in the software of Matlab R2013a by specified format

the methods of correspondence analysis

weighted rank-sum ratio(WRSR) comprehensive evaluation and correlation analysis were used to analyze the time characteristics and composition principles of Rhapontici Radix in application. Result:The database recorded a total of 287 formulae.We found 58 common compositions to treat sore and ulcer

it often mixed with Rhei Radix et Rhizoma

Cimicifugae Rhizoma and so on;and found 23 common compositions to treat hypogalactia

it often mixed with Trichosanthis Fructus;and found 38 common compositions to treat dermatosis

it often mixed with Tribulus terrestris

Scrophulariae Radux and so on.The using of common compositions was stable and especial

the formulae were reasonable. Conclusion:Dictionary of Chinese Medicine Prescription has a wide range of compatible drugs for Rhapontici Radix.The characteristics of treatment are clear.The assay has reflected the different characteristics in different periods and indications.It has a certain of guiding significance for modern clinical of Rhapontici Radix.