政府采购政策功能包括促进自主创新、节能环保、中小企业发展等诸多方面。本文对这几个方面的法律依据、相互关系、存在问题、国外经验借鉴、政策建议进行了详尽介绍,有利于我们理清思路、深刻认识政策功能发挥的重点、难点问题,对于进一步的政策研究和政策落实大有裨益。 Government procurement policy functions include promoting independent innovation, energy saving, SME development and many other aspects. This article provides a detailed introduction of the legal basis, interrelationships, existing problems, reference of foreign experience and policy suggestions in these aspects, which helps us to clarify our thinking and profoundly understand the key and difficult issues that policy functions play. For further policy research And the implementation of the policy is of great benefit.