The construction of key indicators for carbon credit evaluation not only affects the implementation of financial institutions' support for the dual carbon goals, but also has a significant impact on the construction of China's carbon market, the achievement of the dual carbon goals, and the green development of the economy and society. This article is based on enterprise energy data and designs key indicators for enterprise carbon credit evaluation through data such as production energy efficiency, carbon emissions, and carbon efficiency levels, to more accurately reflect the true credit status of the enterprise. By constructing a more comprehensive carbon credit evaluation method and system, enterprise carbon credit evaluation can accurately reflect the changes in credit status of various enterprises in the process of achieving carbon neutrality goals and carbon market construction. It provides scientific and feasible credit evaluation tools for financial institutions, investment institutions, local governments, etc., and helps China achieve the "dual carbon" goals and promote green economic and social development.