Research on Public-Private Partnership (PPP) in Indonesia has emerged over the last decade due to the increased popularity of PPP as one of the financing schemes for the infrastructure project. This study aims to determine the trend of PPP research in Indonesia between the period of 2002 and 2019 and identify the research gap. Papers from three academic citation engines; Google scholars, Sinta and Garuda were selected based on the specific words relevant to PPP issues in Indonesia. A total of 107 papers from both international and national journals are analyzed to discover a few themes of the paper and analyze them based on the categories emerging from the themes. The analysis revealed that the quantity of the paper steadily increase from the period of 2015 and is still dominated by authors from engineering science background (41.12%). Road (20.47%) and Water Supply (16.54%) are the popular objects in the study, followed by the airport (3.94%). In terms of methodology, the case study of a PPP project has been a popular methodology chosen by 31 papers (28.97%). The top three topics in the literature have discussed risk analysis of PPP project (22.43%), the implementation of PPP (22,43%) and the BOT scheme (13,08%). The study identifies the literature gap in the accounting issues and taxation issues respectively, as well as the social impact of the PPP projects. Research on the three issues will enrich our understanding of the PPP issues in Indonesia.