The bigeye (Priacanthus macracanthus) is one of the commercially important species in southwestern Taiwan waters over the years. However, the catch and CPUE of the bigeye has declined significantly in recent years. In order to understand the fishing impact on reproduction and growth of the bigeye of the bigeye, this study analyzed the lengthfrequency data of different periods for comparing the growth parameters. The results showed 1997-1998: k =0.14(yr-1), =372 mm, 2005-2006: k =0.18(yr-1), =345 mm, 2015-2016: k =0.15(yr-1), =353 mm, and 2018-2019: k =0.3(yr-1), =372 mm. On the other hand, this study used mesopterygoid to estimate age and growth of the bigeye. We sampled the bigeye per month from October 2018 to October 2019 in Zihguan, Mituo and Donggang fish market. Totally 907 bigeye were sampled (male: 547 and female: 360). The von Bertalanffy growth parameters of male and female were estimated as the results: female with =336.49 mm and k=0.382(yr-1), male with 391.08 mm and k=0.205(yr-1) and all samples with =392.22 mm and k=0.205(yr-1). The growth parameter results showed that the growth rate and the did not increase or decrease significantly in three periods from 1997 to 2016. The growth rate increased and the catch decreased in 2018 to 2019. Compared with previous studies, there is no premature maturity phenomenon. Therefore, over-fishing of the bigeye in southwestern Taiwan waters has not yet occurred.