Focusing on the latest development of microgrid operation control technology, this paper combs and summarizes the related research at home and abroad, including the key technologies of microgrid optimization operation, power prediction and virtual synchronous active. Focusing on the latest development of microgrid operation control technology, this paper combs and summarizes the related research at home and abroad, including the key technologies of microgrid optimization operation, power prediction and virtual synchronous active. A microgrid is a grid with many advantages, such as independence, effectiveness in working, and environmental friendliness, and can solve both energy and environmental problems. The paper reviews the microgrid system: how it functions, how it has advantages in energy and environmental aspects, and. With the increasing prominence of the energy crisis and environmental problems, microgrid technology has received widespread attention as an important technical means to improve the stability and reliability of new energy access. Besides, various prospective issues and challenges of microgrid implementation are highlighted and explained. This study would help researchers, scientists, and.