Brine shrimp is one of the main feeds for juvenile fish. Frequent feeding juvenile fish will lead to rapid consumption of brine shrimp, so it is necessary to expand the production of brine shrimp. Since the traditional hatching steps of brine shrimp need to be adjusted by manual operation, and the whole process takes 18 to 24 hours. Tradition hatching process is complicated and time-consuming. This thesis builds a set of automatic brine shrimp incubator, in order to reduce the time cost on hatching brine shrimp. Arduino be selected as the operating system to develop an automatic brine shrimp incubator in practice. An automated system is introduced to replace the traditional hatching process, simplify the hatching procedure. The experiment results verified that by replacing the traditional artificial hatching process with the automated process. Then, the hatching time of brine shrimp can be shortened. Also the time spent on feeding the feed can also be shortened.