Since 2007, the large-scale green tides have been recorded continuously in the Southern Yellow Sea of China for 12 years, which caused significant economy losses and negative social impact on the west coast of the Yellow Sea. The Yellow Sea green tides soon became one key issue of ecological, oceanic remote sensing and other related subjects. This paper reviewed the recent pro gress on the origin and biomass estimation of green-tide algae, remote sensing (RS) and unmanned aerial vehicle (UAV) monitoring on the green tides, nonetheless, the “observation blind zone” was still existing in the current research, and there were also some short comings on the research of “the origin mechanism of the Yellow Sea green tides ”. Taking the origin and the initial biomass estimation of the green-tide algae into the sea as the key content, this paper proposed a comprehensive technical means to use RS, UAV, mari time on-site test, voyage investigation and laboratory analysis, to provide scientific support on the prevention and control strategies for the Yellow Sea green tides.