South Korea has accelerated its efforts over the years to address the issue of climate change and join the global community’s collaborative climate action. As a middle-power country, South Korea has the unique opportunity to become an influential actor in the global effort to combat climate change. This article introduces South Korea’s climate policy of the last three administrations, including the key initiatives and actions, as well as South Korea’s role in the global climate community. By tracing the progress of South Korea’s climate change policy, the paper aims to enhance the understanding of South Korea’s advancing climate action at national and global levels. It then suggests policy directions on climate change for the new Yoon Suk-yeol administration in order for South Korea to become a leader in fighting climate change.