2-butoxyethanol (C6H14O2) is widely used in many industrial reagents; according to the in vitro data it was established that 2- butoxyethanol metabolites are strong haemolytic poisons. Ghanayem B.I., Sullivan Ch.A. (1993) investigated in vitro the effect of BE on the red blood cells of 10 species of mammals, including humans. In this study, the authors established the species specificity with regard to the development of hemolytic anemia under the effect of butoxyethanol [4]. In the context of the available data, creation of experimental model based on the introduction of animal butoxyethanol is taking place. Since the druginduced hemolytic anemia is formed at the adjacency of toxic and autoimmune forms, the study of immunology of any toxic anemia is of great interest. Objective: to develop a new experimental model of hemolytic anemia after butoxyethanol and to study its immunology. In conclusion, the proposed model of hemolytic anemia after butoxyethanol may be used in the experimental and preclinical studies. The intraperitoneal administration of butoxyethanol provokes an autoimmune response directed against own red blood cells. The intraperitoneal administration of butoxyethanol to experimental animals is accompanied by a reduction of the lymphoid tissue that corresponds to the appropriate response to stress in the central and peripheral organs of immunogenesis