The present invention discloses a waterproof environmentally-friendly floor comprising the following raw material components by weight: 50 parts of waste plastic, 12-15 parts of a crushed plant material, 3-5 parts of an oxide premix, 10-15 parts of wood ship powder, 3-5 parts of diatomaceous earth, 15-20 parts of peat, 8-12 parts of a filler, 4-6 parts of methacrylate, 2-4 parts of cellulose acetate, 4-5 parts of an interfacial modifier, 2-4 parts of magnesium oxide powder, 3-4 parts of bamboo fiber, 3-4 parts of stearic acid, 0.3-0.5 part of ferrous sulfate and 3-6 parts of a binder; by use of the waste plastic, waste is used, and turned into treasure, and the purpose of energy conservation and environmental protection can be achieved. By synergies of the oxide premix and the crushed plant material, the compressive strength and the flexibility of the material can be increased, the obtained material is difficult to age, and has waterproof, fireproof and soundproof functions, the interfacial modifier can adapt to climate changes in temperature, cracks are not easy to produce, the waterproof environmentally-friendly floor does not cause water leakage, and has strong acid and base resistance and shock resistance and good thermal insulation function.