Abstract: In order to further promote the healthy growth of renewable energy and improve the credibility and traceability of the renewable energy consumption process, this paper proposes a trading matching and circulation model for green certificates based on blockchain with the advantages of blockchain such as mutual trust, tamper-free, openness and transparency and etc, to fully record the issuance and transaction process of green certificates on blockchain. This method provides an effective guarantee for reducing the cost of trust among users, as well as for simplifying the tracing and auditing process of green certificates. Furthermore, it also greatly enhances the efficiency of trading and circulation for green certificates.