The invention discloses a hog house feces leaking system which comprises feces leaking plates and support rods, wherein one support rod is supported between every two adjacent feces leaking plates, each feces leaking plate is provided with feces leaking holes, main cross beams and main vertical beams, and edge hooks are further arranged on two sides of each feces leaking plate; transverse supports are arranged at the back of each feces leaking plate, and support plate reinforced ribs are arranged on two sides of each transverse support; and hook reinforced ribs are further arranged at the edge of each feces leaking plate. The hog house feces leaking system has the technical advantages as follows: (1), horizontal and vertical stability of the feces leaking ground is improved, so that the feces leaking plates and the support rods can be mounted synchronously, and the mounting accuracy is guaranteed; (2), on the premise that stress and deflection meet the use requirement, the lengths of the feces leaking plates are increased to 2.4 m or even longer, so that mechanical feces cleaning is achieved, and labors are completely relieved; and (3), a macrofiber thermoplastic composite material is introduced to the hog house feces leaking system, so that long-term sanitation and safety are achieved, and meanwhile, the material can be directly used as a raw material after smashed, and environmental friendliness and economic efficiency are achieved.