The experiment was performed to evaluate the possibility of utilizing underground sea water for the seed production of tiger puffer, Takifugu rubripes. For this purpose, the effects of 6 different salinities (3.5, 7.0, 14.0, 20.0, 27.0, $33.0\%_{circ}$) were determined based on the hatching rate of fertilized eggs, survival rate and the amount of food consumed by hatched larvae, where as the effects of 3 different salinities (20.0, 27.0, $33.0\%_{circ}$) were also examined with rearing tiger puffer juvenile ($4.29{pm}0.50$ cm in total length) for 50 days in the closed recirculating water system. As a results, either the hatching or the survival rate of more than $70.0\%$ were obtained from the fertilized eggs reared at the salinity of 27.0 to $33.0\%_{circ}$, the early hatched larvae at 27.0 to $33.0\%_{circ}$, and the 10-day-old larvae at 20 to $33.0\%_{circ}$. At three different salinities, the survival rate of 20-day- and 30-day-old larvae turned out to be $89.0\%$ and $92.5\%$, respectively. The salinity for maximum food intake thus appeared to be from 27.0 to $33.0\%_{circ}$. In this condition, 20-day-old hatched larvae consumed $323~342$ Artemia nauplii and 30-day-old hatched larvae ate $1,559~1,5791$ A. nauplii. The highest growth rate of fingerlings were observed at the salinity $27\%$ and followed by 33.0 and $20.0\%_{circ}$, respectively. The relationship between the days of rearing (X) and the total length (Y) of the fingerlings were as follows : $33.0\%_{circ}$ group : Y=0.107X-2.532 (r=0.982) $27.0\%_{circ}$ group : Y=0.116X-3.195 (r=0.975) $20.0\%_{circ}$ group : Y=0.116X-2.693 (r=0.987) The slopes of regression line estimated from $27.0\%_{circ}$ and $33.0\%_{circ}$ groups were significantly different from that of $20.0\%_{circ}$ group.