Objectives : The purpose of this study was to investigate the melanogenesis inhibition effect of Saururus chinensis BAILL (SC) on in B16F10 melanoma cells. Methods : SC was fractionated ethanol extract by the hexane, ethyl acetate, butanol and water. We confirmed the inhibitory effect of tyrosinase activity and melanogenesis of all fraction samples. Results : Hexane fraction of Saururus chinensis BAILL (HSC), ethyl acetate of SC (ESC), and butanol of SC (BSC) were discovered to inhibit tysoinase activity and melanogenesis in the absence or presence of ${alpha}$-MSH. However, water fraction of SC (WSC) did not affect tyrosinase activity and melanogenesis. In addition, all fractions did not inhibit the catalytic activity of cell-free tyrosinase from B16F10 melanoma cell lines. Conclusions : These results suggest that HSC, ESC and BSC reduce pigmentation by indirectly regulating tyrosinase.