This paper reports the results of an experiment on the nutritional requirements of five essential amino acids (EAAs) of blunt snout bream. Thaoptimal rnge(gkg feed) of the five EAAs are recommended as follows:Arginine20.9--20.8; Leucine 24.2-21.7;Histidine 6.4-6.2，hysine 18.60-19.80; Tso-lecine 14.6-14.7