Abstract: A group of experiments was conducted under the conditions of temperature 30℃, to determine the optimum feeding rate and the effects of different feeding rates on the growth performance of the black fry (Anguilla marmorat) with size of 3.67±0.3g. Five feeding rates from 1.0% to 3.0% (at 0.5% increments) of body weight per day were used in this test. An identical diet was given to the black fry for 40d. The main result showed that the relative weight gain (RWG), specific growth rate (SGR) , food conversion efficiency (FCE), net weight increase and survival rate (SR) of the black fry were significantly (p<0.05) affected by all feeding rates, and the optimum feeding rate for the black fry was 2.0%; At this feeding rate, the FCE was (47.39±1.17)%, the SGR was (1.08±0.03) %/d, the RWG was (52.49±1.04)%,SR was 100%。