Simple bottle-cultivation plant floating bed

The utility model discloses a simple bottle-cultivation plant floating bed belonging to the field of purification technology of eutrophic water body. The main body of the floating bed is a quadrilateral floating body frame that is integrally bonded by PVC long pipes or/and PVC short pipes and PVC elbows; the frame is internally provided with a mesh plane that is formed by mutually interweaving long fishing ropes or/and short fishing ropes; simple bottle-cultivation plant mechanisms are arranged uniformly in the mesh bed plane; the interweaving is defined by weaving long fishing ropes into rope slipknots which wrap the short fishing ropes at the joints or by weaving the short fishing ropes into the rope slipknots which wrap the long fishing ropes at the joints; the simple bottle-cultivation plant mechanism consists of a plant field-planting bottle and a plant; the periphery of the bottleneck of the plant field-planting bottle is sheathed in the mesh holes in the mesh bed plane and is fixed by the circumferential rope slipknots; and the plants along with the sponges wrapped at the stack part of the plant are sheathed and fixed in the bottleneck of the plant field-planting bottle. The simple bottle-cultivation plant floating bed has reasonable design and simple structure, can be manufactured easily, has low price, is economical and durable, and is applicable to generalization and application in vast rural areas.