Aim of investigation: The aim of the present study was to evaluate the possibility using of indirect liver fibrosis markers for the estimation of fibrosis severity and timely prescribing of antiviral therapy in patients with chronic hepatitis B.Materials and methods: We examined 130 patients with chronic hepatitis B (mean age 41,8±13,5 years, 70% of men) having known liver fibrosis stage based on fibroelastography or liver biopsy. The age of patients, 9 parameters of biochemical blood analysis, complete blood count and coagulogram along with 7 indices calculated on their base were considered. Their prognostic values were estimated by means of ROC analysis.Results: According to increase of liver fibrosis stage albumin, prothrombin index, platelet count, cholesterol reduce and aspartate aminotransferase, international normalized ratio, gamma-glutamyl transpeptidase, alanine aminotransferase, alkaline phosphatase levels rise (p<0,01). All of the laboratory parameters and indices were significantly different (p<0,01) in patients with minimal (F0–F1) and advanced (F2–F4) fibrosis. For patients with chronic hepatitis B the most significant predictors of advanced liver fibrosis (F2–F4) were: GUCI and King’s score indices as well as eLIFT scale. Index GUCI had the best diagnostic performance (area under the receiver operating characteristic curve 0,866) with 89,5% sensitivity and 78,0% specificity at cut off ≥0,7/ Conclusion: The assessment of indirect liver fibrosis markers in patients with chronic hepatitis B can be easily performed at any stage of medical care; they are quite informative and can be used for the estimation of fibrosis severity and timely conducting antiviral therapy.