Abstract: To find out the relationship between the level of serum TBA of chronic hepatitis and the degree of hepatic inflammation. A careful observation was made on secrection and differentiation period of hepatic inflammation, and Alb, TBil and ALT in the biopsies of liver done from 102 patients with chronic hepatitis. The level of serum TBA (x±s) on slightness (G 1-2 , S 0-2 ) , medium (G 3, S 1-3 ) and severity (G 4, S 4) of hepatic inflammtion were 16 74±13 34 (μmol/L) , 72 25±68 94 (μmol/L) , and 186 34±96 18 (μmol/L) , being severity>medium>slightness. Both the comparisions between slightness medium, and medium and severity showed P <0 01. These result suggest that the level of serum TBA of chronic hepatitis is in direct proportion to the degree of hepatic inflammtion, which has significant value in the diagnosis for evaluation of the degree of hepatic inflammation.