Two methods for rearing fingerling of large-mouth black bass, Mcropterus salmoides with natural prey and supplementing natural prey with feed rnixture were described in this paper. The larvae have significant selectivity to zooplankton in its different developmental stages. The finerling with yolk and oil droplet preferred to feed on rotifera and nauplius as it was 5. 4-6. 8mm in length. It turned to feed on cladocera and copepodid as it grew to 8.1 -20. 0mm. And it began to feed on cladocera and copepoda as it was 21. 3- 30.3mm in length. In that period, the larvae also fed on feed mixture. The proportion of feed mixture in the digestive tract of the fish increased with the growth in body length- Dialy increase in boby length and body weight was 1. 23mm and 20. 35mg respectively after 20 days of rearing with natural prey while they were 1. 43mm and 24. 69mg respectively in the group fed with supplementing natural prey with feed mixture. As for growth performance, the latter is higher than the former. It showed that there is singificant difference between these two rearing practices, by t-test (t=3.19>t0.05 (2. 101). The results implied that feed mixture can be supplementary with natural prey,and it will improve the survival of the fingerling and enhance the growth significantly.