Countries around the world are actively addressing climate change，with growing net-zero emission commitments and actions，but global CO₂ emissions continue to increase，global average temperatures are still on the rise，and the window for humans to control temperature rise is gradually shrinking. The International Energy Agency released Net Zero Emissions 2050：A Roadmap for the Global Energy Sector，this roadmap that provides a basis for decision-making at the 26th United Nations Climate Change Conference. This paper provides a detailed analysis of the phased implementation targets of the international net-zero emissions route，as well as the global transition paths and the role of green low-carbon technologies in the energy，power，industry，transportation and building sectors. Suggestions and insights for China to achieve peak carbon and carbon neutrality are proposed：to formulate China’s long-term low-emissions development strategy and win the international discourse on climate change；to strengthen carbon neutral science and technology innovation and set targets in phases；there is no one-size-fits-all technology path for green low-carbon transition；to pay attention to the risk challenges in the transition process and make good countermeasures；and to strengthen international cooperation to achieve carbon neutrality targets.