In the last few decades there has been a steady growth of vessels diseases, including diseases of the abdominal aorta and its unpaired branches. The aim of this study was to study the topography of the abdominal aorta and its unpaired branches in men and women belonging to different age groups. It was analyzed 266 computer tomograms of the abdominal aorta and its unpaired branches of adult men and women divided into three age groups (first and second periods of mature age and old age). It was found that for men is typical the more distal location of the studied anatomical objects relatively to the vertebral column in comparison with women. It was proved that in women of the first mature age period, as well as in men, most often the beginning of the abdominal aorta is observed at the middle of the Th12 body (35.8%), in the second period of mature age - at the middle of the Th12 body (33.3%); in the elderly - at the level of the lower edge of the body of this vertebra. The level of the aorta bifurcation in men in the first period of mature age are most often located at the level of the lower edge of the L4 body, in other age groups at mid-body L4. While in women the age-related changes of the level of the bifurcation of the aorta is not significant. It was shown that in women in all age groups the outfall of the celiac trunk is localized higher than that in men. Dynamics of age changes of the position of the outfalls of the upper and a lower mesenteric artery, in men and women varies considerably. The obtained information about sex and age characteristics of the position of the abdominal aorta and its bifurcation, the outfalls of the celiac trunk, upper and lower mesenteric arteries have not only anatomical interest but also have clinical importance in surgical interventions on the organs of gastro-splenic-pancreaticoduodenal zone.