To study on the growth of young stage Acanthopagrus schlegelii, samples were collected from the shallow waters off Kunsan, Korea from July to December, 1995. The planctonic larvae of Acanthopagrus schlegelii were collected in early June. The young fish of 12.7~26.6 mm in total length began to appear in the shallow water in late June. They grew up 19.9~51.4 mm in middle July, 24.8~75.0 mm in late July, 63.3~79.6mm in middle August. A. schlegelii disappear from the shallow water after middle August, and began to be collected in the outer bay off Kokunsan Isls. by long back net. This species that had spawned from Kunsan coast in late June to middle August grew up to 100mm in total length in December of that year.