Objective. To evaluate the effect of the "Caring for Caregivers" program in the caring ability and burden in family caregivers of patients with chronic diseases at health care institutions. Methods. A randomized controlled clinical trial was conducted in 34 relatives of patients with chronic diseases that had cared for them for more than 3 months. Zarit scale was used to measure caregiver burden and the CAI (Caring Ability Inventory) was also used to measure caring ability.