Abstract: Shipboard Integrated Power System(IPS) integrates the independent mechanical propulsion system and the traditional shipboard power system. It is the important trend of shipboard power system development and plays a significant role in shipboard system. Therefore, it is of great importance to carry out studies on the key technologies of analysis for shipboard IPS. For this purpose, this paper presents a literature review on the research progresses in the key technologies of shipboard IPS, such as power flow, short circuit fault detection and analysis, recovery reconfiguration, voltage control and reactive power optimization, reliability evaluation and stability analysis. Based on the review, it analyzes the difficulties and challenges that may be faced in the reseach of above mentioned fields and puts forward the major research issues that must be addressed. Finally, the prospects and suggestions for future development are proposed and the direction for future analysis of shipboard IPS is pointed out.