Chronic Obstructive Pulmonary Disease (COPD) is an air flow inhibition disease that often occurs in cigarette exposure to active or passive smokers. Indonesia is one of the developing countries that have a high number of active smokers. The purpose of this study was to determine the level of smoking in COPD patients in the city of Padang. This observational descriptive study was conducted by interviewing COPD patients who were admitted to Dr. Rashidin Lung General Hospital and Reksosudiryo Army Hospital. Data is taken from May to September 2018. Data is processed manually and presented in the form of a frequency distribution table. A total of 53 subjects were included in this study after signing written informed consent and found the Brinkman index value was heavy at 47.2%, moderate at 22.6% and mild at 30.2%. In this study, it can be concluded that the highest percentage of COPD patients is heavy smokers.