ObjectiveTo study effects of rhizoma dioscoreae hypoglaucae on the uric acid elimination. Methods70 mice were randomly divided into 7 groups: normal control, model control, benzbromarone group, high and low dose of water extract and ethanol extract of Dioscorea collettii Hook.Var, respectively, 10 in each group. Mice in normal control and model group were orally treated with 0.02 mL·g-1 N.S., others were i.g. benzbromarone 0.03 g·kg1, water extracts 10 and 20 g·kg1, and ethanol extract of Dioscorea collettii Hook.Var 10 and 20 g·kg1, respectively. Mice were treated once at 8:00 and 16:00 every day, for five consecutive days. Except for normal control group, others were i.p. injected with monosodium urate suspension 0.025 mL·g-1 after the last treatment to induce hyperuricemia. The blood samples were collected from eye balls at different time after the model construction, and isolated the serum to detect uric acid by uric acid analysis regent kits. ResultsIt was shown that the high dose of water extract significantly reduced the uric acid in the serum of both rats and mice, which similar to benzbromarone. ConclusionRhizoma Dioscoreae Hypoglaucae exhibits antigout function.