Purpose This study was designed to know how Hyunburikyungtang-gagam effects on dysmenorrhea Method 47 patients visited Oriental Gynecology in Conmaul Oriental Hospital from Jan, 2001 to Jan. 2002 because of their dysmenorrhea were randomly assigned. Hyunbruikyungtang-gagam were prescribed to the patients. Primary and secondary dysmenorrhea change were studied by VASS, MVRS. Written down by the patients before and after the treatment. Results Their ages were $28.62{pm}4.9$, 18 patients were married and the others were not married. prescription period were $20.59{pm}0.97$ days, After the treatment, numerical index for the pain was obviously reduced in both primary and secondary dysmenorrhea. Numerical index reduced $5.43{pm}1.63$(VASS), $3.04{pm}1.58$(MVRS) in primary dysmenorrhea, and $5.43{pm}1.63$(VASS), $3.04{pm}1.58$(MVRS) in secondary dysmenorrhea and there is no difference in effect between primary and secondary dysmenorrhea. But prescribed period was not correration with treatment effects and Pain-reduced period. Conclusion Hyunburikyungtang-gagam has good efficacy on primary and secondary dysmenorrhea, but some more studies are needed on the relationship between treatment effects and Pain-reduced period.