Under the background of cultural power strategy，this paper aims to advocate the adoption of COD mode in cultural PPP projects and provide new ideas for PPP. This paper first points out the development of cultural PPP projects，then analyzes the definition and characteristics of COD mode，and puts forward a transaction structure combined with COD and PPP；then through the comparative analysis of two cases，combing the successful operation experience and potential contradictions in two implementation pathways in COD mode；finally，this paper puts forward suggestions for PPP based on COD. This paper is helpful to the development of PPP in the cultural field and to the extension of PPP mode to public service fields.