本文分析了西方发达国家国有制企业的分类及其与私营企业产权结构的区别 ,这种区别使国有制企业在市场经济体系中发挥着双重作用 ,即国有制企业同时作为私营企业的补充和政府宏观调控政策的工具。正确认识这种作用对我国国有企业的改革有着十分重要的借鉴意义 This paper analyzes the classification of state-owned enterprises in western developed countries and the difference between them and private-owned property rights structure. This distinction makes state-owned enterprises play a dual role in the market economy system. That is, the state-owned enterprises supplement the private enterprises and the government Macro-control policy tools. Correctly understanding this effect has very important referential significance to the reform of our state-owned enterprises