Decarburization of energy system is the key to realize carbon neutrality in China. However，people from all walks of life are concerned about “can China’s natural endowment of wind and solar energy resources support the realization of carbon neutrality？”. There are still considerable doubts. In addition，because wind energy and solar energy are intermittent and fluctuating，it is extremely challenging to build a new power system with new energy as the main body. In order to answer the above scientific questions，this paper systematically evaluates the technical exploitable capacity of wind power and photovoltaic in China based on the data of wind and solar resources with high temporal and spatial resolution，and constructs a model of supply and demand and spatial optimization of scenery power，revealing the optimal pattern of wind and solar development in China in 2050. The results show that at the current technical level，the technical development capacity of wind power and photovoltaic in China is 56.55 billion kilowatts，which is about 9 times of the installed capacity of wind and solar energy required in the carbon neutral scenario. By 2050，if the installed capacity of wind power is 2.5 billion kilowatts and the installed capacity of photovoltaic is 2.67 billion kilowatts，according to the interactive balance of hourly power and electricity，the new energy alone can provide about 67% of the country’s electricity demand，and the power abandonment rate is less than 7%.