[目的]对水产育苗自动控制系统进行局部改进,以期为该系统的高效稳定使用奠定基础。[方法]对水产育苗自动控制系统的执行和驱动模块进行局部改进,并对改进后的实时监测、数据显示及报警模块等进行效果测试。[结果]试验中,改进自动控制系统的原有设计结构后,可使各元件更匹配,降低了传输电阻,系统的稳定性、灵敏度明显提高。[结论]该研究为水产育苗过程中水温度和溶解氧自动控制系统的使用及故障排除提供了帮助。 [Objective] The research aimed to improve the automatic control system of aquatic nursery seedlings in order to lay the foundation for the efficient and stable use of this system. [Method] The implementation and driving module of aquatic seedling automatic control system were improved locally. The improved real - time monitoring, data display and alarm module were tested for effectiveness. [Result] In the experiment, after improving the original design structure of the automatic control system, the components can be more matched, the transmission resistance can be reduced, the stability and the sensitivity of the system have been obviously improved. [Conclusion] The study provided help for the use and troubleshooting of water temperature and dissolved oxygen automatic control system in aquaculture and seedling raising.