Since the beginning of the 21st century, Chinese coastal seas have often suffered from jellyfish blooms, which may relate to global climate change and human activity. There are some economically important Chinese sea areas for people such as beaches for tourism, the water intake area of a power plant, and other industry facilities, where frequent jellyfish bloom occurred almost every year recently, which has become a serious problem. Therefore, it is urgent to understand the mechanism of jellyfish bloom, and to develop technologies for monitoring, predicting, and controlling. Based on available previous studies, international collaboration and conferences, were viewed cases worldwide in biology and ecology, evaluated advantage and disadvantage of applicable technologies, and looked forward the perspective of monitoring and control technologies of jellyfish bloom in China in the future.