Introduction. Type 2 diabetes mellitus is a widespread chronic disease that increases in frequency with age. Some modern researchers consider sarcopenia to be one of the complications of type 2 diabetes mellitus. Sarcopenia is an age-associated chronic disease characterized by decreased strength, mass, and skeletal muscle function. Decreased skeletal muscle strength is dynapenia. Bioimpedance analysis is a non-invasive, accurate and reliable instrumental method for measuring body composition. It is of interest to compare anthropometric, functional, laboratory parameters and body composition of elderly and old women with type 2 diabetes mellitus. Aim: compare anthropometric, functional, laboratory parameters and features of body composition between groups of women with type 2 diabetes depending on the presence of dynapenia. Materials and methods. Our study included 139 women aged 65 to 87 years, mean age 72.7 ± 5.4 years. All patients suffered from type 2 diabetes mellitus. Results. In the group of patients with dynapenia, a decrease in the strength parameters of the upper limbs (handgrip strength) and lower limbs (5-sit-to-stand chair test), as well as a decrease in functional parameters (walking speed), was revealed. A statistically significant decrease in the Barthel Index was found in the group of patients with dynapenia, while the IADL index did not change. Dynapenia was associated with high levels of glycemia and glycated hemoglobin, with a longer duration of type 2 diabetes mellitus, a decrease in the bioimpedance phase angle, the proportion of skeletal muscle mass in the body composition, basal metabolic rate, and skeletal muscle mass index. The proportion of fat mass, fat mass index, and specific metabolism did not show statistically significant intergroup differences. Conclusion. Ageing has been associated with an increase in dynapenia in elderly and old women with type 2 diabetes mellitus. Dynapenia led to a decrease in the basic activity of daily life, instrumental activity remained the same. Dynapenia was associated with higher glycemic and glycated hemoglobin levels, as well as with a longer duration of type 2 diabetes.