Poultry breeding cage

The utility model provides a poultry breeding cage. The device comprises a plurality of vertical frames, a bottom net and a cross beam assembly, the vertical frames are vertically arranged, the crossbeam assembly comprises a plurality of cross beams, and the two ends of each cross beam are fixedly connected with the vertical frames; a longitudinal supporting assembly is arranged between any two adjacent cross beams of the cross beam assembly; the longitudinal supporting assembly comprises a bracket. A first supporting plate body of the bracket is connected with the upper end of a second supporting plate body; an included angle is formed between the first supporting plate body and the second supporting plate body, the joint of the first supporting plate body and the second supporting platebody abuts against the lower end face of the corresponding bottom net, and the two ends of the first fixing plate body and the two ends of the second fixing plate body are fixed to the two adjacent cross beams respectively. T