The “Copenhagen Accord” upholds and maintains the principle of common but differentiated responsibilities and respective capabilities, the authorization of the “Bali road map”, and the “twintrack” negotiating process. It also clearly pinpoints the rights and obligations of the developed countries to compulsorily reduce emissions and that of the developing countries to take selfdeterminate to mitigation actions, strengthens the law responsibilities of the developed countries to provide financial and technical support to address climate change, and actively maintains basic rights of the developing countries in measuring, reporting and verification of mitigation actions. At last, it establishes the longterm operational objectives that the global average temperature rise must be controlled under 2 degrees Celsius corresponding the temperature before the industrial revolution. So, the “Copenhagen Accord” has taken a very important step to jointly cope with climate change in the international community, and has a positive and important legal value and meaning of the guide of action. To implement of the commitments of the Copenhagen meeting, China should actively improve the legal measures to response to global climate change.