INTRODUCTION– Wound healing is a complex, dynamic process and delayed wound healing significant health problem in India.Various type of surgical methods have been developed for wound healing such as Advanced Wound Care Therapies(AWCT),Myo cuteneous or fascio cuteneous tissue transfer, Standard dressing Therapy,etc. VAC therapy is non invasive therapy using for management of large chronically infected wounds more recently used in treatment of traumatic wounds and delayed healing wounds. AIM– Aim of this study is to evaluate functional outcome of vaccum–assisted closure(VAC) dressing therapy for management of non healing traumatic & non traumatic wounds. MATERIAL & METHOD–Our study was conducted in 100 patients in civil hospital,Ahmedabad from June 2018 to June 2019.Out of 100 patients,50 patients are male and 50 are female.mean age ranging from 20 to 60 years.VAC dressing therapy applied for non healing non traumatic wound and traumatic wound. RESULTS–Out of 100 wounds taken in the study,90 patients showed reduction in wound surface area.56 patients underwent split thickness skin grafting,20 patients developed secondary wound healing,4 patients were taken for flap closure.10 patients showed failure of response later on subjected to redebridemnt or Amputation. DISCUSSION– In our study,44% patients showed granulation after 3rd day,72% after 6th day,90% after 9th day.Our study showed that VAC dressing therapy increases the vascularity and rate of granulation tissue formation compared to standard wound dressing therapy. CONCLUSION– VAC dressing provides sterile and controlled envioment to large wound surface by controlled application of sub atmospheric pressure and prepares wound for closure through split thickness skin grafting and secondary closure in short time leading to less overall morbidity with decresed hospital stay.