Abstract: The construction of hydroelectric projects brought benefits and created wealth for human beings. However, they also influenced the balance of river ecosystem, seriously affected the survival of aquatic organisms, especially for some migratory fish including Chinese sturgeon (Acipenser sinensis Grdy) and Sauyage et Dabry (Coreius guichenoti). As their migration routes were hindered, fishery resources have been decreasing in recent years. In the purpose of helping fish pass the dam, researchers have done many work on fish passage facilities. As a fish passage facility which is not fixed at the dam, fish barging can overcome the shortcomings of fixed fish facility. It is of high research value and has application prospect in restoring the balance of ecosystem and protecting fish in hydropower station. We simply introduced the research status and key technical issues of fish barging in China and abroad, and presented the trend of its future development.

Key words: fish barging, fish passage, fish conservation, dam