Abstract: As a new generation of high voltage direct current（HVDC） transmission technology, the voltage sourced converter based high voltage direct current（VSC-HVDC） transmission technology has outstanding advantages such as independent control of active and reactive power, fast and flexible response, and strong scalability. It is widely used in wind power integration, grid interconnection, passive network power supply, and long-distance bulk power transmission. Under the construction of the new power system in China, the technical advantages of VSC-HVDC transmission technology will be further highlighted in response to major demands such as the transmission of renewable energy and the safety and stability of the multi-infeed HVDC. This paper sorts out the development status and trends of VSC-HVDC transmission technology, takes several representative VSC-HVDC projects as examples, systematically expounds the engineering practice experience of VSC-HVDC transmission technology in China, and focuses on the application of VSC-HVDC transmission technology in renewable energy integration, grid interconnection and long-distance bulk power transmission. Finally, the prospect of VSC-HVDC transmission technology in the new power system is analyzed, and the challenges it faces are pointed out so as to provide reference for its development and application.