in recent years, Chinese and foreign research achievements prove Chinese herbal medicine additive as an immunopotentiator can well improve immunity of fishes and shrimps, enhance non-specific killing activity of various etiologies and then reduce disease occurrence chance. It opens up a new way for disease control of aquatic products. This paper analyzes basic features of Chinese herbal medicine additive, introduces common Chinese herbal medicine additives and their important functions in aquaculture, sets forth the problems of Chinese herbal medicine additives in aquaculture and proposes corresponding countermeasures. With continuous economic development in China in recent years, aquaculture industry has gained great development. It is worth noting that disease phenomena of aquatic products become increasingly serious. The varieties and number of fish chemicals used in aquaculture continue to rise. Frequent application of antibiotics and vermifuges give rise to large-scale residue of chemicals in fish bodies, thus leading to pathogen resistance and the decrease in the quality of aquatic products. The health of modern people is jeopardized. Besides, the environment is polluted. Thus, development and production of safe and efficient pollution-free aquaculture chemicals has become the key to better and faster development of aquaculture industry. Chinese herbal medicine additives own numerous advantages such as nature, efficiency, small toxic and side effects and rich resources. They not just have drug property and nutrition in the process of preventing and curing fish diseases, but also can improve production property and high efficiency of feed utilization of aquatic livestock. In view of these, it is urgently necessary to popularize and apply Chinese herbal medicine additives to prevent and cure fish diseases.