碳排放权交易信用评价在公开透明、协调分工、惩戒与保护等原则的引领下，可以充分调动多方主体的积极性，契合碳排放权交易市场诚信原则的要求。然而，由于碳排放权交易信用评价法治化程度不足，碳排放权交易信用评价的实施存在缺乏对信用评价的实施主体、适用对象、评价范围及程序安排的明确规定、尚未建立统一规范的评价标准体系、评价对象权利保障不足等问题。碳排放权交易信用评价本身对企业具有较大的影响力、约束力，如果没有完善的法律制度予以约束，容易导致信用评价的随意性和不公正。通过建立健全相关法律制度提高其法治化程度，可以逐步推动碳排放权交易市场的稳定运行。建议从加强碳排放权交易信用评价的统一立法、构建统一规范的信用评价标准以及保障评价对象的权利等方面加以完善，逐步建立起规范化、制度化的碳排放权交易信用评价体系，推动碳排放权交易信用评价工作朝着法治化方向稳步迈进。

Guided by the principles of openness and transparency,coordination and division of labor,and punishment and protection,the credit assessment of carbon emission permit trading(CEPT)can fully activate the enthusiasm of stakeholders,which is in line with the integrity principle of the market.However,due to the insufficient legalization of CEPT credit assessment in China,the implementation of CEPT credit rating faces the following problems:the lack of clear stipulations on the implementing entities,applicable objects,assessment scope,and procedural arrangements of credit rating,the absence of a unified and standardized assessment system of standards,and insufficient rights protection of evaluated objects. The credit assessment of CEPT has a significant influence and constraint on enterprises,and without a sound legal system for regulation,it is prone to arbitrariness and unfairness. By establishing and improving relevant legal systems to enhance the degree of legalization,it is possible to gradually promote the stable operation of the CEPT market. Improvements should be made in several aspects:strengthening the unified legislation on CEPT credit assessment,establishing unified and standardized credit assessment standards,and safeguarding the rights of the evaluated objects. This will gradually establish a standardized and institutionalized CEPT credit assessment system,and promote the credit rating work of CEPT to steadily advance towards legalization.