Effect and assessment of enhancement release has important practical significance, in guiding the development of effective strategy for fishery resource conservation and has attracted international attention. In this study, based on the data of enhancement release of coastal reef fish in Zhoushan Archipelago during 2004–2008, relevant data of black sea bream() were obtained through sentinel surveillance surveys, social investigations and fish tags recycling. The recapture rate, migration and distribution, growth and mortality conditions of the two released species near releasing sites were analyzed by using a combination approach of site investigation and theoretical calculations. In this study, the recapture rate of black sea breamincreasing year by year. The recapture rate of black sea bream by sport fishing reached 3.68% in 2008, and the rate by hand-lining increased year by year, with the size becoming smaller, which indicated there was a growing trend recruit population. Average fork length and average body weight of recapturedblack sea bream increased by 70.29% and 390.25% in 3 months. Average body length of Japanese croaker could increase by 200%, and the growth rate of average daily body weight was up to 1g/d. The instantaneous rates of total mortality, natural mortality and fishing mortality were The total input/output ratio of black sea bream would have reached 1:6.55 from releasing time to the fourth year, while that of the Japanese croakerwas up to 1:12 or more in the current year. Growth of black sea bream and Japanese croaker in natural waters had more advantages than that in cage culture and pond culture. Due to the impact of fishing, the residual groups in the sea were reduced greatly, while the cumulative effects of enhancement release can be seen on the basis of continuous, large-scale manual releasing for many years. The results indicated that enhancement release in artificial reef habitat waters increased fisheries production, restore populations to a certain extent, maintain diversity of natural waters, thus improving the ecological community and benefiting the ecological environment restoration.