政府和社会资本合作模式的应用越来越广。然而，并不是所有的项目都适合采用PPP模式，出现了PPP模式的滥用。为了判断项目的PPP模式适用性，本文提出GOD（Goods-Operation-Delivery）分析方法，把PPP模式适用性问题简化为三个步骤及三项判断准则：首先，以公共产品理论为基础，根据项目产出的属性识别出无需采用PPP模式的项目；其次，以公共权力理论为基础，根据项目运行的属性识别出不能采用PPP模式的项目；最后，基于比较优势理念，根据项目交付模式的效率确定是否优先采用PPP模式。为了演示GOD分析的应用，本文对智慧城市建设项目的PPP模式适用性进行了演示性分析，结果表明GOD分析可以较好地分析项目的PPP适用性。

PPP （Public-Private Partnership） mode has seen an increasingly wide application. However， not all projects are suitable for PPP mode and there is an abuse of it. In order to assess the suitability of PPP， this paper proposes the GOD （Goods-Operation-Delivery） analysis method which simplifies its assessment into three steps and three criteria. Firstly， project output attributes are analyzed to identify projects that do not need to adopt PPP mode based on public goods theory. Secondly， project operation attributes are analyzed to identify projects that cannot adopt PPP mode based on the public power theory. Finally， the delivery efficiency of projects is analyzed to determine whether it should give priority to PPP mode based on the concept of comparative advantage. To demonstrate the application of the GOD analysis method， this paper presents a demonstrative analysis of suitability of PPP mode for smart city construction programme. The results show that the GOD analysis method can be used to assess PPP suitability of projects quite well.