People with Intellectual Disabilities (ID) are aging and accompanied the process are co-morbidities and disabilities. Have limitations in mental function and performance of activities, prior to 18 years and aging tend to exacerbate disabilities and increase dependency. Analyze the functional profile of the population enrolled in service for people with ID in the aging process by measuring and comparing the degree of dependency to perform everyday activities. Descriptive cross-sectional study, conducted between January to August 2014, with 112 men and women between 36 and 65 years, diagnosed with DI Used the Functional Independence Measure (FIM) to measure functional independence in six areas of life. The majority are male (68.55%), with 46.6 years, unspecified etiology (47%), degree of impairment of moderate disability (34.65%) and modified to full independence, FIM = 105.64 (72 %). In the analysis by areas, identified greater needs for supervision and minimal-moderate aid in communication and social-cognition and greater independence in self-care, sphincter control, mobility and locomotion. These data show the description of the literature in relation to major adaptive disabilities of DI for communication, cognition and social interaction, and even favorable predisposing factors of aging and dementias such as Alzheimer's type. Highlights the importance of expanding this research to longitudinal monitoring functionality, contributing to the understanding of the aging of the population, with associated co-mobidades and dementia syndromes. This study try to contribute to this knowledge of the aging population and to promote research for prevention and health promotion.