Abstract: With the world energy transition and low-carbon strategies putting forward, cross-regional energy interconnection and offshore wind power development have flourished in recent years, and submarine cables are the main channel for cross-sea power transmission.Submarine cables are an important way to transmit clean energy, the core link in building a new power system, and an important channel for power transmission in a new power system.The development status of submarine cable projects at home and abroad in recent 10 years was introduced, and focused on the development of extruded insulated submarine cables and wrapped insulated submarine cables, and briefly analyzed the typical submarine cable projects.The current status of submarine cable manufacturing technology was summarized from the perspective of insulating materials and shielding materials, and in last the application prospects for submarine cables were prospected (47 references citied).