Since the reform and opening up, China's economy has developed at a rapid pace, and the impact of industrial development and social change on the natural environment has become more diverse and profound. In evaluating the economic value of nature reserves, we often have to consider their current economic value, and past values appear to be meaningless, which makes it necessary to ensure both a reliable basis for the calculation criteria when calculating the value of reserves, and the use of time-recent This makes it necessary to ensure that the criteria for calculating the value of protected areas are reliable and that the most recent data are used. Therefore, this paper uses Nature Reserve C as an example to construct an assessment system for natural environment protection based on energy efficiency. The paper begins with a brief introduction of the evaluation principles and the carbon balance evaluation model, followed by the design of the nature reserve evaluation system and the general architecture of the system, and finally the analysis of the natural resource value and the economic value of the nature reserve.