INTRODUCTION Chronic Obstructive Pulmonary Disease (COPD) is a common preventable and treatable disease that is characterized by persistent respiratory symptoms and airflow limitation that is due to airway and/or alveolar abnormalities usually caused by significant exposure to noxious particles or gases. Patients with COPD are also prone to exacerbations with progression of their disease, which often lead to hypercapnic respiratory failure. MATERIAL AND METHODS A study was conducted from august 2017 To November 2018 in kamla Nehru chest hospital, Department of pulmonary medicine, Dr.SN. Medical College Jodhpur, a tertiary care centre for respiratory diseases in western part of Rajasthan, India. This will be a prospective observational study evaluate Role of NonInvasive ventilation in the management of Type 2 Respiratory failure. RESULT In this study 80 patients of a total of 110 had successful outcome giving a success rate of 72.72% for NIV, 30 patients (27.27%) had unfavourable outcome. Mean age of the population was 60.6+8.6 years. Maximum number of patients were in the age group of 60–69 years in both males and females. success rate of NIV was highest in the age group <50 years (100% success). success rate of NIV was slightly higher in males (77.27%) as compared to females subjects (22.73%). CONCLUSION effective use of niv results in fewer complicaitons, shorter length of hospital stay, and lower mortality. the need for mechanical ventilation is also reduced. in a low resource setting as we find in our country, admission practices towards and icu is usually made arbitrarily. NIV is a cost effective intervention in acute exacerbation of COPD with hypercapnic respiratory failure