The Montreal Protocol is widely considered one of the most successful multilateral environmental agreements, which succeeded in controlling the global emissions of ozone-depleting substances. This paper analyzes the efforts made by China on the London Amendment. The principle of 'common but differentiated responsibilities is discussed with China's own efforts on global ODS. Further analysis indicates that the Montreal Protocol has played an integral role in global warming in the current international environmental problems. Learning the case of Montreal and Kigali, this article summarizes the success of the amendment to protocols that can be attributed to the negotiations between developed and developing countries, which led to the establishment of the Multilateral Fund and a better understanding of the principle.