Single fishpond floating bed device with adjustable water layer position

The utility model relates to the technical field of water body ecological restoration and discloses a single fishpond floating bed device with an adjustable water layer position. The single fishpond floating bed device comprises a single floating bed body (1), a fixing frame (2), a sinking bucket (3) and a mesh liner (4) fixed on the lower side of the single floating bed body (1). Planting holes (11) and connecting holes (12) are further formed in the single floating bed body (1). The lower side of the sinking bucket (3) is provided with a valve (32), the upper side of the sinking bucket (3) is provided with a cover (31), and a water inlet pipe (33) with a valve is arranged on the cover (31). Water is filled into the single bucket of the single fishpond floating bed device to enable the single floating bed body to sink under the water surface of a fishpond, fish can directly eat tender leaves, epicormic branches of plants on the floating bed and plant insect pests, the ecological prevention effect on the floating bed plant insect pests is achieved, and the technical problems including time-wasting and strength-wasting manual harvest of the floating bed plants, plant utilization synchronous processing and the like in the prior art are solved. The harm of the fish to the plant roots is effectively prevented through the mesh liner.