During the First World War 1914-1918 Russian Army hadn't a united medical service, military-medical affair was diluted in multiple governances. Evacuation of wounded and ill persons was an affair of Evacuation Governance of Main Governance the General Staff. Process of treatment in field and stationary medical formations was administered by sanitarium chiefs of armies and theaters of operation, bureaucrats of Russian Red Cross Society, Russian Union of Cities and Territorial Union. Supply by medical property, accounting and arrangement of medical staff was administered by Main Military-Sanitarium Governance, supply by sanitarium-household property--by Main Indent Governance, health resort affair--by Governance of Supreme chief of sanitarium and evacuation part in Empire of prince Ol'denburgskiy P.A. On the base of different sources were characterized casualty of Russian Army during the war.