Taiwan's oyster farming industry is still dominated by natural oyster seedlings. In recent years, the output of natural oyster seedlings has been unstable, which has affected the production capacity of the oyster industry. The purpose of this study is to obtain the best conditions for oyster seedlings on the basis of artificial breeding of oysters (including optimal breeding density, temperature, salinity and algae feeding amount), and to record the growth of artificial oyster seedlings through field experiments.Cultivate oyster juveniles (320-350 ) with different densities (1, 3, 5, 10 ind/ml) and different temperatures (15, 20, 25, 30°C) to conduct seedling experiments, and record the most suitable artificial seedlings of oysters. density and temperature conditions. It is expected that the production of oyster artificial seedling strings will be increased by seedling cultivation and seedling attachment technology, and batch mass production technology will be established. And further accurately improve the benefits of artificial seedling attachment, which is in line with the actual application and operation of the breeding industry, and expects to generate a new industrial chain in the future.