This study was conducted to evaluate the effects of dietary medicinal herb residues (MHR) on the growth and body composition of olive flounder (Paralichthys olivaceus). Two replicate groups of olive flounder with initial mean body weight of $18.7pm0.3;g$ were fed 8:2 (raw fish and commercial compound meal ratio)MP diet containing $0\%,;50\%,;10\%,;15\%;and;20\%$ MHR for 7 weeks. Weight gain and feed efficiency increased in the $5\%;and;10\%$ group as compared to the control group, whereas they decreased in the $15\%;and;20\%$ groups. Moisture, crude protein, and crude ash content of the whole body were not significantly different between experimental groups, whereas crude lipid content of the $5\%;and;10\%$ groups were significantly higher than that of the $10\%;and;20\%$ groups. The results indicate that the addition of $5\%;and;10\%$ MHR in 8:2 MP diet can improve growth and feed efficiency, but addition of more than $15\%$ were not effective.