Introduction: Healthy elderly require supervision and help, being greater in disabled elderly. Objective: to determine the level of knowledge of caregivers of disabled elderly people of the Popular Council "Ceferino Fernández Viña", Pedro Borrás Astorga health area, Pinar del Municipality Rio, during the first quarter of 2023. Methods: observational, descriptive and cross-sectional study, with a universe of 91 caregivers and a sample of 84, according to inclusion and exclusion criteria. Theoretical, empirical and statistical methods were used. Results: 21.4% of the caregivers are between 40 and 49 years of age and 85.7% are female. The care that did not have knowledge related to the duties and rights of the disabled predominated 84.5%, the need to emphasize the lost capacities more than the conserved ones in 70.2%. 80.9% of the sample does have knowledge about nutrition in the disabled elderly. The level of knowledge in general of the studied caregivers was evaluated in most of the caregivers with a medium level of 55.9%. Conclusions: most of the caregivers of the disabled elderly studied have deficiencies related to the knowledge to adequately carry out their work.