Napoleon wrasse (Cheilinus undulatus) is one of the most high value marine fish in the international live trade market owing to its finest organoleptic qualities. Nevertheless, its endangered status on the IUCN Red List is attributed to unregulated overfishing, highlighting the crucial need to focus on captive breeding efforts through aquaculture. This study emphasized on the years of efforts to establish broodstock management of Napoleon wrasse under controlled condition aimed at producing their seed in captivity. A total of 60 adult Napoleon wrasse were kept in 150 tonnes tank equipped with filtration within a recirculation system and they were fed daily with enriched prey fish and alternately with squid. Hormone was injected to each fish few times in a year within 7 years and its growth and maturation were examined. Findings showed Napoleon wrasse attained an isometric growth pattern (b = 2.9487) with condition factor of above 0.2 indicating its excellent growth under captivity while maturation was seen in several females and fertilised eggs were obtained. Histological analysis had shown female attained maturing and matured stages. However, sperm was unable to obtain in all males hence comprehensive investigation of male Napoleon wrasse need to be highlighted in the future. This study’s findings suggest that Napoleon wrasse can be successfully cultured and matured in controlled environments, showing promising potential for seed production through aquaculture.