This study analyses the effect of economic growth to ASEAN countries on the environment and more specifically test the existence of an Environmental Kuznets Curve. The fixed-effects and panel cointegration models followed by FMOLS and DOLS have been utilized in determining factors that influence carbon dioxide emissions in ASEAN countries (Brunei, Indonesia, Cambodia, Myanmar, Malaysia, Philippines, Singapore, Thailand, Lao, and Vietnam). The results support the environmental Kuznets curve hypothesis. Moreover, energy consumption has significant effect to carbon dioxide while quality of institutions and foreign direct investment are insignificant. From the findings it is hoped that it can give useful information to the influence of the variables to the pollution of carbon dioxide in ASEAN.This study analyses the effect of economic growth to ASEAN countries on the environment and more specifically test the existence of an Environmental Kuznets Curve. The fixed-effects and panel cointegration models followed by FMOLS and DOLS have been utilized in determining factors that influence carbon dioxide emissions in ASEAN countries (Brunei, Indonesia, Cambodia, Myanmar, Malaysia, Philippines, Singapore, Thailand, Lao, and Vietnam). The results support the environmental Kuznets curve hypothesis. Moreover, energy consumption has significant effect to carbon dioxide while quality of institutions and foreign direct investment are insignificant. From the findings it is hoped that it can give useful information to the influence of the variables to the pollution of carbon dioxide in ASEAN.