Foot ulcers are a serious complication of diabetes mellitus that are associated with adverse sequelae and high costs. In addition, such foot ulcers have a significant impact on quality of life (QoL). The study aims to evaluate effect of planned educational intervention among the patients with diabetic foot ulcer. Quantitative research approach was adapted for the study. The study was conducted in tertiary care hospital, Puducherry. The researcher had chosen the first sixty patients for control group and sixty patients allotted for study group to implemented educational intervention. The pre assessment was carried out on 1st day in both groups. Then, routine hospital care was started for control group and educational intervention was started for study group up to 21 days. On 22nd day post assessment was done for both groups. Data collection was carried out by modified Thomas E. Burrough’s Diabetes Quality of Life Clinical Inventory structured through face to face interview method. Descriptive and Inferential statistics was used for data analysis. The quality of life was significantly better among the patients in the study group, the mean was from 47.52 to 20.22, who received educational intervention than the patients in the control group, the mean was found 47.63 to 32.13 who received routine hospital care which was statistically significant (p<0.000). The health care providers should include the educational intervention in their routine patient care to prevent diabetic foot ulcer and improve quality of life of diabetic foot ulcer patients.