Aim:The effect of Xiaohuang Granule on No on Experomenal Jundice Rats was studied.Methods:The jaundice model of rats was produced by oral administration of ANIT. The changes of NO,ALT, TBil,GGT and pathology of hepatic tissue were observed.Results:Xiaohuang Granule improved the NO level and other indexes.Concluslon: Xiaohuang Granule can reduce content of NO,by which inhibition on the toxicity of hepatic cells and promotion of bilirubin metabolism may be achieved.