In 1968 Karpachev graduated from the Faculty of History of the Voronezh State University.
English teacher at a school in the city of Abdulino, Orenburg region (1968-1969), teacher of history - in one of the Moscow schools (1969-1971). Lecturer (since 1973), Associate Professor (1988), Head (since 1992) of the Department of Russian History at Voronezh State University.
Specialist in the history of public life, agrarian relations in Russia, the 2nd half of the XIX - early XX century, the history of the Voronezh region of the XIX-XX century.
Author of more than 150 scientific works.Scientific editor of 10 collections on the problems of the social life of the center.