This article aims to explore green banking activities being implemented in other countries and propose solutions for Vietnamese commercial banks. To accomplish this goal, the author presented models of India, Malaysia, Indonesia, China, and Bangladesh. The study employed a qualitative approach. The results show that for effective implementation, there needs to be synchronized policies from the central bank or governing body and commercial banks. The results also show that there are two groups of activities that banks can deploy depending on the bank’s capacity. Two groups of activities include direct activities and indirect activities.