New distribution network planning serves as a critical technical approach to promote the green-low-carbon development and digital transformation of distribution networks. To provide decision support for new distribution network planning schemes under the low-carbon development target, this paper summarizes the existing evaluation index systems for distribution network planning, and establishes an evaluation index system tailored to new distribution network planning. An evaluation indicator system is proposed taking five dimensions as the core, namely clean and low-carbon performance, security and adequacy, supply-demand coordination, economic efficiency, and flexibility and intelligence and covering 13 secondary indicators and 56 tertiary indicators. Furthermore, to address the drawbacks of single weighting methods, a comprehensive evaluation method combining game-theory integrated weighting and VIKOR is proposed. Game theory is adopted to integrate the DEMATEL method and CRITIC method for integrated weighting, preventing evaluation results from being overly subjective or objective. The VIKOR multi-attribute decision-making method is applied to assess planning schemes, so as to guarantee more stable and reliable evaluation results. Finally, a practical distribution network planning case is studied to verify the feasibility and practicality of the proposed planning evaluation method.