231 Setipinna taty individuals were sampled by singlestake stownet fishery from Lüsi Fishing Ground in the south of the Yellow Sea to analyze sagittal otolith morphology and information contained. The results indicated that the otolith length ranged from 1.88 to 4.91 mm with mean of 3.75 mm and otolith weight ranged from 0.8 to 13.7 mg with mean of 6.4mg. Observation of the otoliths of Setipinna taty showed that the growth equation was fitted by the all otolith length ( L_OA, mm) and fork length as follows, L_OA=2.6322 ln(L)-8.2612. The relationship between L_OA and otolith weight (W_O, mg) was W_O=0.196×L_OA^-2.6186. It is induced that the age range of the Setipinna taty individuals measured was 60-258 days, in which 90~150 days dominated the age range, accounting for 69.5%. The linear growth equation between fork length and age (day) was L=0.2034×A+69.12. The estimated hatch dates of Setipinna taty in the south of the Yellow Sea were distributed between January and March and 83.6% concentrated in February.