Concrete filling mold bag

The utility model relates to a concrete filling mold bag which comprises a water-permeable bag-shaped structural body woven by fibers, a plurality of net-shaped bags capable of being filled with fillers and separation structural bodies are arranged in the bag-shaped structural body, and the net-shaped bags are communicated with one another and separated by the separation structural bodies to form a warp-weft staggered net-shaped structure. The net-shaped bag is formed by weaving a first weaving layer and a second weaving layer, and the weaving density of the separation structural body is larger than that of the first weaving layer or the second weaving layer. Under the condition that a drainage pipe is not arranged on the side slope, a large amount of water in the side slope can be directly discharged through the separation structural body, and the risk that the water accumulated between the side slope and the bag-shaped structural body causes the collapse of the side slope is prevented; various fixing piles