The utility model discloses a cast formula liquid distributor, it comprises feed liquor pipe, toper fender liquid board and multilayer cloth liquid board, the toper keep off between liquid board and the cloth liquid board and each layer cloth liquid board between set up a plurality of connection pieces respectively, connection piece along circumference equipartition keeps off the toper to be connected and fixes between liquid board and each layer cloth liquid board, each layer cloth liquid board is the circular slab, and circular liquid through hole has all bored in each layer cloth liquid board central authorities, and each layer cloth liquid board is from last to equidistant range down, and the liquid through hole diameter is from last to reducing gradually down on each layer stiff and straight footpath of cloth liquid and the cloth liquid board, this kind of cast formula liquid distributor can make level injection formula with fluid passage multilayer cloth liquid board and distribute, can form the parabolic liquid film of multilayer with liquid distributor, and cloth liquid is more even, and the cloth liquid level is long -pending big, and difficult the jam is favorable to the gas -to -liquid contact mass transfer to conduct heat.