Diabetic ulcer is a dangerous complication of diabetes mellitus associated with adverse consequences and high costs. Diabetic ulcers have a significant impact on quality of life. It is related to activity restriction, disabilities and the loss of mobility. Diabetic foot ulcers also lead to body image impairment and limitation of interaction with others. The purpose of this study was to identify the quality of life of patients with diabetic foot ulcer. This study used a descriptive method among 35 patients who had foot diabetic ulcer graded 2, 3, and 4. Findings of the study revealed that diabetic ulcer affects physical health, psychological health, social relationship and environment of 54.3%, 54.3%, 85.7% and 60%, respectively. Therefore, it is suggested that healthcare providers, their families, and the community give motivation, support, and education on patients with diabetic foot ulcer to achieve higher levels of quality of life.