The cage seedling cultivation technology of large yellow croaker, the sea area is selected as small and medium wave area, the water depth at low tide is ≥8 m, the flow rate is smooth, the flow rate is less than 1.5 m/s, and the flow direction is smooth and stable. The sea area with high flow rate which can be controlled by technical measures can also be used as aquaculture area. Water quality should comply with the provisions of GB 11607, water temperature: 8 ℃ ~ 31 ℃; Salinity: 13 ~ 35. The area of a single cage is 16 m 2 ~ 100 m 2, and the net depth is 4.0m ~ 8.0m. Net mesh 3 mm ~ 15 mm, adjust the size according to the specifications of the fish, in order not to escape the fish as the principle.Breeding feed includes large yellow croaker compound feed and fresh and mixed fish ingredient bait.