本文介绍了供应市场集中度理论在电力物资招标采购中的实践与应用,并结合赫芬达尔—赫希曼指数建模分析了现行电力线路材料各项目的市场结构,探讨竞争与垄断市场形成的原因,研究对应的物资采购策略。文章建议通过应用市场集中度理论,制定符合当前市场结构的招标采购策略,从而引导电力行业良性竞争和稳步发展。 This article introduces the practice and application of supply market concentration theory in the bidding and purchasing of electric power materials. Combined with the Herfindahl-Hirschman index modeling, it analyzes the market structure of each item of power line materials and discusses the formation of competition and monopoly market Reason, study the corresponding material procurement strategy. The article suggests applying the market concentration theory to formulate a bidding and purchasing strategy that conforms to the current market structure so as to guide the healthy competition and steady development of the power industry.