赤潮或有害藻华已越来越成为全球性的海洋环境问题，赤潮的发生不但破坏水域生态系统的平衡，而且给水产养殖业造成了巨大损失。本文概述了日本赤潮监测研究及其防治对策的现状，以便为我国在赤潮调查研究工作中提供一些有益的经验 Red tide or harmful algal blooms have increasingly become a global marine environmental issue. The occurrence of red tides not only undermines the balance of water ecosystems, but also causes great losses to aquaculture. This article provides an overview of the current status of research on red tide monitoring in Japan and its prevention and control measures in order to provide some beneficial experiences for our country in the research work of red tide