Properties of the immune system, its organs and cellular structures has been studied in works of many scientists. Describes the methods and means of research of properties of the immune system. However, the author in the pro-cess microscope study of the peripheral blood (haemoscanning of an technique), watching video recording on high-speed fixed unusual behavior of the cells of the immune system. This article describes the previously fixed properties of phagocytes. The videos demonstrate the following functions of immune cells: an assessment of the opportunities, the pushing, the pulling, assessment of viability of red blood cells and control of process completion. Some speculate on the possible biochemical processes that determine the cooperation between phagocytes and erythrocytes. Raises issues about the mechanisms of interaction of phagocytes and red blood cells, about the fac-tors determining individual and social behavior of phagocytes. The analysis of previously unrevealed properties of phagocytes on the basis of the process of phagocytosis.