Cholestatic liver disease, caused by the accumulation of hazardous bile acids in the liver, may result in cirrhosis, fibrosis, or liver failure. Activation of SIRT6 prevents cholestasis-associated pathological events, such as oxidative stress and mitochondrial biogenesis disorders, and inhibits bile acid synthesis to alleviate cholestatic liver injury. However, it is still uncertain which pathway is responsible for the therapeutic effect of SIRT6 in reducing cholestasis. Therefore, we treated liver-specific