The time for a country or region to achieve carbon peak is constrained by its resource endowment and the stage of social and economic development. The report divide China into five regions：the East，the middle，the northeast，the southwest and the northwest is conducive to refine the carbon peak scenario of each region，and then clarify their own low-carbon development path and the key direction of regional cooperation. Due to the differences in economic，social and natural conditions among regions，there are also great differences in the peak time of carbon emissions among regions. Under the policy scenario，the East，middle and southwest can reach the peak around 2025，the northeast can reach the peak around 2030，and the Northwest can reach the peak around 2035. Under the enhanced emission reduction scenario，the East，central and southwest can reach the peak around 2020，the northeast can reach the peak around 2025，and the Northwest can reach the peak around 2030. In the 2℃ scenario，with the further increase of emission reduction，although the peak time of each region has not changed，the carbon emission at the peak has further decreased.