Reduce the risk of green financial products and increase the interest of investors, such as encouraging local governments to set up special guarantee funds and giving certain financial support if local governments are not willing enough; Strengthen the promotion of other credit enhancement methods such as carbon emission income rights; Moderately relax the leverage ratio of green bonds guaranteed by guarantee companies; Implement differentiated guarantee policies for green financial products and so on. The implementation of the above policies can really improve the enthusiasm of issuers and investors to enter the market. I hope that in the future, all participants will no longer be just for "reputation", "affection" and "pressure" of supervision. Green bond refers to any bond instrument that exclusively uses the obtained funds to finance or refinance green projects that meet the prescribed conditions. Compared with ordinary bonds, green bonds are special in four aspects: the use of funds raised by bonds, the evaluation and selection procedures of green projects, the tracking management of raised funds and the requirement of issuing relevant annual reports. Compared with the booming global green bond market, China has not issued official or internationally certified green bonds.