Title: Effectiveness of 1% acetic acid soak on healing process of foot ulcer among diabetic patients. Objectives: To assess the level of foot ulcer among diabetic patients.To evaluate the effectiveness of 1% acetic acid soak on healing process of foot ulcer among diabetic patients.To associate healing process of foot ulcer among diabetic patients with their demographic variables. Hypotheses: There is a significant difference between the pre and post test level of healing process and between the post test level of healing process and demographic variables,significant association between the healing process of foot ulcer among diabetic patients. Methodology: Pretest- post test design was used. 60 sample were selected by probability (Simple Random) sampling technique. Interventional group received 1% acetic acid Soak twice a day for 5 days. Pretest- post test was done by using PEDIS Classification and Scoring System. Findings: The findings revealed that there was a significant improvement of healing process after intervention confirmed by student?s independent t-test value=8.35 and p=0.001level. Conclusion: The statistical evidence proved that the 1% acetic acid soak was simple, safe and effective in improving the healing process of foot ulcer among diabetic patients.