No country can be free of global warming and incremental natural disasters. This is true especially of developing countries, which are the most vulnerable to climate change. Although developed and developing countries agreed to mobilize USD 100 billion per year to support developing countries by 2020, the Organization for Economic Cooperation and Development (OECD) has transferred only about USD 58.5 billion, on average over 2015 to 2018, to developing countries. Korea, one of the OECD’s Development Assistance Committee (DAC) members, has a considerable gap between its contribution and its target. This is due to several reasons such as the lack of official development assistance (ODA) as a primary public resource for developing countries, limitations of other forms of public climate finance, and the low level of public-private partnerships (PPP) related to climate change. This study analyzes Korea's climate finance, mainly climate-related development finance (CRDF)) as a part of ODA. It suggests a strategy for solving the issues faced by the Korean government with a policy analysis approach.