The adsorption capacity of four kinds of domestic macroporous resins for amino acids in static state from Grass Carp protein hydrolysates were investigated The results indicate that the sequence of maximum absorption equilibrium value are XDA-200>LSA-800C>XDA-5>LSA-8B. The adsorption has made the color of the hydrolysates light and has also made the taste better. Besides, the resin XDA-200 exhibites good performance in absorbing amino acids as well as peptides. Aromatic amino acids are mainly absorbed in free state. Tryptophans are less absorbed when they are bonded to other amino acids which are not preferred by the resin. Branched amino acids are also mainly absorbed in dissociation state. So far as the nutrition is considered, we should decrease the content of the tryptophan in order to prepare the Grass Carp protein hydrolysates with the character of "More BCAA and Less AAA".