针对输变电工程建设时序有待优化的问题，对输变电工程建设优先级评价方法进行了研究。首先，从必要性、经济性、效率性、环保性4个维度出发，构建输变电工程建设优先级评价指标体系；然后，基于博弈论的思想将分别通过序关系分析法和指标相关性权重确定法求得的主客观权重进行结合，引入灰色关联分析法对基于组合赋权的优劣解距离法进行改进，构建输变电工程建设优先级评价模型；最后，对某省电网规划项目库中4个拟建220 kV输变电工程进行建设优先级评价并展开建设时序规划。结果表明：所提出的评价方法适用性较强，能够有效辅助电网基建规划。

Aiming at the issue that the construction sequence of transmission and transformation projects needs to be optimized, the construction priority evaluation method of power transmission and transformation projects was studied. Firstly, the construction priority evaluation index system for power transmission and transformation projects was constructed from four dimensions, including safety, economy, efficiency and environmental protection. Then, based on the thought of game theory (GT), the subjective weight and the objective weight obtained by order relation analysis method (G1) and criteria importance though intercrieria correlation (CRITIC) respectively was conbined. Grey relational analysis (GRA) was introduced to improve the technique for order preference by similarity to ideal solution (TOPSIS) based on combined weight, and a construction priority evaluation model for power transmission and transformation projects was established. Finally, the construction priority of four proposed 220 kV power transmission and transformation projects in a provincial power grid planning project library was evaluated and the construction sequence was planned. The result indicates that the proposed evaluation method has strong applicability, which can effectively support power grid infrastructure construction planning.