Sandbag for water conservancy flood prevention

The utility model discloses a sandbag for water conservancy flood prevention, which relates to the related technical field of water conservancy projects and comprises a sandbag main body, a bag opening is arranged on the sandbag main body, the internal space of the sandbag main body is communicated with the outside through the bag opening, a limiting plate is arranged in the middle of the front end of the sandbag main body, and a balancing weight is arranged in the middle of the rear end of the sandbag main body. The limiting plate and the balancing weight are fixed into the limiting plate packaging bag and the balancing weight packaging bag respectively, the ring edge of the limiting plate packaging bag and the ring edge of the balancing weight packaging bag are both connected with the sandbag body in a sewing mode, and a groove with the size larger than that of the balancing weight is reserved in the direction, facing the limiting plate packaging bag, of the limiting plate face. The two ends of the top and