Based on the methods of bibliometrics and visualization,the paper compares knowledge management system research from the perspective of the growth trend,research fields and research hotspots. The results show that the research on knowledge management system has been in a relatively mature stage. Overseas research hotspots mainly include knowledge management system models, knowledge management system information technologies,application of knowledge management system and knowledge management system evaluation,while domestic research focuses on information technology-based knowledge management system research, supply chain-based knowledge management model construction and application of knowledge management system,which infers that research hotspots at home and abroad have both commonalities and characteristics. Overseas research prefers empirical research,while domestic research is mostly qualitative analysis. Some recommendations for the direction of domestic knowledge management system research have been put forward at last.