The invention provides a flange connected film multi-bag crane scale. The flange connected film multi-bag crane scale comprises a rigid slab I and a rigid slab II, more than two film bags, a pressure gauge and two U-shaped bolts, wherein the rigid slab I and the rigid slab II are arranged in parallel up and down; the film bags are made of an impermeable flexible material which is not easy to extend; the film bags and two opposite surfaces of the two rigid slabs jointly constitute an enclosed space; the enclosed space is filled with liquid; the pressure gauge is communicated with the enclosed space; the enclosed space is shaped as a circle bread; the film bags are adhered to the rigid slab I and the rigid slab II; the two U-shaped bolts form an upper lifting ring and a lower lifting ring. The flange connected film multi-bag crane scale has the advantages of large range of unit area, good stability, low height, small size, no aging of components and low cost and is not affected by temperature.