Ecological floating island for water pollution control

A net cage is located in the center of the ecological island, a plurality of floating blocks are fixed to the periphery of the net cage, the other ends of the floating blocks are connected with floating plate units connected in series through cables, a plurality of flowerpot holes are formed in the floating plate units, flowerpots can be placed in the flowerpot holes, and aquatic plants are planted in the flowerpots; a plurality of concrete blocks are arranged at the water bottom, and each concrete block anchors the floating plate unit and the net cage through a mooring rope. According to the ecological floating island, net cage fish culture and the ecological floating island are combined, the fish cage for fish culture is arranged in the middle of the floating island, the floating island is stable and firm, the total nitrogen content, the total phosphorus content, permanganate and chemical oxygen demand can be reduced, the dissolved oxygen content can be increased, and a long-acting mechanism for comprehensi