This publication is dedicated to the known phlebologist Innokenty Vasilievich Chervyakov who worked in the last century and made great contribution to the development of this discipline in Russia, Curriculum vitae of I.V. Chervyakov and information of the main lines of his scientific and clinical work are presented. Extracts from his major publications are cited with special reference to the methods of examination of patients presenting with venous disease using functional tests, surgical anatomy of the venous system, rational surgical approach to sapheno-femoral junction, the structure of peri-junctional tributaries and communicating veins, analysis of long-term effects of the treatment. The achievements of I.V. Chervyakov in phlebology are considered in the light of current knowledge.