Modularized furrow for breeding crayfish in rice field

The utility model discloses a modularized furrow for breeding crayfish in a rice field, and relates to the field of crayfish breeding equipment. The device comprises an outer ridge, a separation net is arranged at the top of the outer ridge, a plurality of leaking holes are formed in the inner wall of the separation net, a plurality of inner ridge mechanisms are installed on the leaking holes, and by arranging the inner ridge mechanisms, the separation net and the leaking holes, effective management and efficient fishing of the crayfish breeding environment are achieved; the separation net blocks external large organisms and impurities and maintains ecological balance, the leakage holes guarantee water flow permeability, installation of the inner ridge mechanism is simplified, stability is enhanced, the lower net bag is stably supported through the containing groove and is constant in shape and position, the first sleeve plate is matched, the edge is strengthened, and installation is simplified. The first sle