The utility model relates to an environment-friendly trash rack attached to a slope, and belongs to structural styles of arrangement of trash racks. The environment-friendly trash rack comprises a hoist chamber, the contact positions of trash rack piers and a mountain are in a step shape, the included angle alpha formed by the trash rack piers and the horizontal plane ranges from 60 degrees to 80 degrees, connecting beams are connected between the two trash rack piers, a trash rack door groove is formed in each trash rack pier, the connecting beams are in contact connection with the mountain, the trash rack piers or the connecting beams are respectively and fixedly connected with the mountain through anchor rods, and trash rack doors and the trash rack door grooves are in sliding connection. The environment-friendly trash rack has the advantages that the structure is simple, operating is reliable, and the environment-friendly trash rack is suitable for terrain with the natural side slope grade of 60 degrees to 80 degrees and geological conditions with slight natural mountain slope coverage layer and rock mass weathering. The environment-friendly trash rack focuses on achieving the trash holding aim and meanwhile focuses on the combination with the natural mountain side slope, the aims of meeting the requirement for the structural functionality and achieving eco-environment protection are achieved, and the good application prospect is achieved.