After the Paris Agreement, the new model of“five years of review plus national independent contribution”has been launched, and the financing arrangements for reducing emissions have also changed. Climate finance perspective of carbon finance combines CO₂ emissions with financing in the new financing way, It not only has the particularity of financing with carbon quota as the new target asset, but also has the complications in trading. In order to ensure the smooth development of the carbon finance business dominated by climate finance in the post-Paris era, the international carbon finance legal system needs to be formulated, improved and innovated. China unified national carbon trading market in December 2017 and has more financing channels in the field of international climate finance. However, the framework also lacks legal regulation in the carbon financial institutions, financial products, carbon financial services, etc. Therefore, in reference to the international carbon, on the basis of legal system of financial regulation, formulating climate finance perspective of carbon financial legal system in China, it is of great significance to guarantee the healthy development of carbon market.