The BSP loading test was performed in 39 patients affected by alcoholic liver disease. The behaviour of some parameters of the hepatic BSP metabolism was observed(45th min retention percentage, plasma disappearance rate, K1 and K2 exponentials, K21, K12 and K32 transfer rates). The 45th min retention percentage was the most sensitive parameter in detecting liver disease. This parameter, PDR, K1 and K21 were the most reliable parameters in differentiating between the various forms of alcoholic liver disease(alcoholic steatosis, alcoholic chronic hepatitis, alcoholic cirrhosis).