Abstract: In order to effectively promote the low-carbon transformation of China’s economic and energy systems, considering the systematicness, scientificity and integrity of carbon reduction schemes, two concepts are put forward. One concept is the peaking of net CO₂ emissions, also called carbon peak, and the other one is the plateau about carbon peak and carbon neutrality. The basic approach to achieve the latter concept’s target is expounded, which is with regard to economy, society and the transition process of low-carbon technology. Meanwhile, the adjustment suggestion of policy framework is studied, the tightly focused problems are investigated. It is proposed that the path to reduce carbon emission should be designed according to some definite aspects, such as the physical carbon intensity index and the value carbon intensity index of products which belong to different industries, the other indexes in connection with assessing the efficiency of carbon emission reduction. The general trend of China’s carbon emission reduction is to reach its peak by 2030, followed by a wavelike decrease and a slight decline（to about 2035）, and then a steady decline（to about 2040）, followed by a approximated linear decline（to about 2050）, and finally an accelerated decline（to about 2060） to achieve carbon neutrality by 2060. It is presented that the existing policy framework should be adjusted from the aspects of regulated government functions, strengthening top-level design, improving index system, scientifically emission accounting, as well as the suggestion including the establishment of mult-index system, which covers binding indicator and guidance indicator. It is indicated that special attention should be concentrated on some key problems refering to significant safety risks of power system in energy’s low carbon transition, systematic cost of transition, ordered coal reduction, etc.