Dependence of stroke survivors regarding the ability to perform activities of daily living imposes a burden on family caregivers. The study evaluated the effect of the family-centered empowerment program on the ability of Iranian patients with stroke to perform activities of daily living, as well as on family caregiver burden. In this randomized controlled trial study, a total of 90 pairs of patients with stroke and their family caregivers was selected and randomly assigned to the intervention or control groups. Patients and their family caregivers participated in four family-centered empowerment program sessions over four consecutive days while the patient was hospitalized. The difference in the ability of patients with stroke in the intervention and control groups to perform activities of daily living was not significant 2 weeks after the intervention. However, the ability of patients with stroke in the intervention group to perform activities of daily living increased significantly 2 months after the intervention compared with the control group: 66 ± 35.95 and 51.31 ± 36.28, respectively (p = 0.047). Two weeks after the intervention, the family caregiver burden significantly decreased in the intervention group (29.55 ± 15.38) compared with the control group (38.77 ± 18.53 and p = 0.012). The burden in the intervention group also decreased 2 months after the intervention compared with the control group: 22.95 ± 15.68 and 36.11 ± 18.88, respectively (p < 0.001). Nurses can use the family-centered empowerment program to improve the quality of life of patients with stroke, and to reduce the burden of family caregivers.