Acanthopagrus latus is an important marine economic fish in the southeast coast of China. At present, there is no new breed approved by the National Original Breeds Approval Committee. In order to breed a new variety of A.latus with fast growth, it is necessary to estimate the heritability of growth traits. In this study, nineteen full sibling families of A.latus including 7 half-sib families were constructed by using the nested design with an artificial insemination. The growth data of 35-day-old A.latus were measured, and their full-length heritability was estimated using MTDFREML software. The results showed that the heritability of full length was (0.234±0.047), which was moderate. The results provide reference materials for the selection breeding of the A.latus in the future.