Fertilized eggs of Culter alburnus were obtained by induced spawning and artificial fertilization.The observation and characterization of embryonic and larval development processes were systematically carried out in May 2014 in Miaohu Lake.The results showed that the fertilized eggs were spherical,cinerous,slightly sticky,pelagic,(1.17±0.15) mm in diameter and (3.26±0.37) mm after hydration.At water temperature of 23-25℃,the process of embryonic development could be divided into 21 stages.First cleavage stage,organofaction stage and hatching-out stage happened at 40 min,9 h and 45 min and 20 h and 15 min post fertilization,respectively.The accumulative temperature were 483.4℃·h.The newly hatched larvae had the total body length of (3.39±0.37) mm and the yolk sac volume of 0.134 mm3.The yolk sac of the 4-d-old larva disappeared and the total body length of them was (4.85±0.31) mm.The long diameter increased at the first day and reduced later,while the short diameter reduced invariably.The correlate equation between the yolk sac volume (V) and the hour after hatching (h) was V=10-5 T2 -0.0027T + 0.1342 (R2 = 0.966 7).