Soft enclosure floating fish blocking device

The invention belongs to the technical field of water body ecological restoration, and discloses a soft enclosure floating fish blocking device which comprises a soft enclosure, the top and the bottom of the soft enclosure are provided with a floating body and a balance weight respectively, through holes are formed in the left side and the right side of the top of the floating body, and the floating body is arranged between two fixed drill pipes in a sleeving mode through the two through holes. The extensible follow-up lifting rods are arranged in the fixed drill pipe, the two ends of the top of the floating fish blocking net are fixedly connected with the two follow-up lifting rods, and when the water level changes, the floating fish blocking net can integrally ascend and descend along with the floating body; the overall size of the floating fish blocking net cannot be changed, the inner sleeve rods of the two sets of follow-up lifting rods ascend and descend along with the floating fish blocking net and sta