Summary Objective: describe the quality of life of frail elderly assisted by the Centro de Referência à Saúde do Idoso (CRI), Campinas, São Paulo, Brazil. Methods: the convenience sample included 122 frail elderly being treated from January 2010 to July 2011, out of a total of 668 frail elderly who were referred to the CRI after application of the brief evaluation form of the elderly, recommended by Ministry of Health, which identifies the elderly with some degree of frailty. Descriptive observational study collected data through sociodemographic questionnaire and quality of life questionnaires: WHOQOL-BREF, WHOQOLOLD and SF-36. Results: the study included 122 frail elderly. Of these, 74.6% (91) were female, mean age 73 years, 46.7% (57) were married, 51.6% (63) had less than 3 years of schooling and 87.7% (107) reported income of one to four minimum wages. The mean total score of the WHOQOL-BREF was 56.6, the WHOQOL-OLD 57.6 and SF-36 Physical Component Summary 34.5 and Mental Component Summary 43.6. Conclusion: knowledge of the impairment profile of quality of life among frail elderly is, therefore, essential for planning health care to this population.