The utility model relates to a farrowing house in a piggery, which comprises a ceiling, a wall body, a farrowing rail and a floor, wherein the bottom plate of the farrowing rail adopts a leak bottom plate; the farrowing rail is horizontally arranged in the farrowing house; the gradient of the leak bottom plate of the farrowing rail to the ground is 4 to 5 degrees; a sewage draining ditch is arranged at the lowest end of the floor; the sewage draining ditch is arc; and the junction of the sewage draining ditch and the inclined plane of the floor is also arc. In the farrowing house, both the sewage draining ditch and the junction of the sewage draining ditch and the inclined plane of the floor adopt arc design, therefore, the farrowing house is easy to clean and sweep, residual faeces and urine are reduced, and the farrowing house is helpful to reduce the generation of harmful gas and reduce bacterium and germ, and is beneficial to the health of breeders, sows and baby pigs. Simultaneously, the water consumption for flushing the piggery can be reduced, and the water cost is saved.