The invention belongs to the technical field of decorative materials, and proposes a bamboo wood fiber negative ion decorative line batten, comprising the following components in parts by weight: 60-70 parts of polyvinyl chloride resin, 40-50 parts of calcium carbonate, 30-40 parts of bamboo fiber wood powder, 10-15 parts of a regulator, 3-5 parts of a foaming agent, 5-10 parts of a calcium-zinc stabilizer, 3-5 parts of calcium stearate, 2-4 parts of stearic acid, 0.5-1 part of paraffin, 0.5-1 part of oxidized polyethylene wax, 2-4 parts of a modifier, 1-3 parts of a fluorescent toner, 1-2 parts of polyvinyl pyrrolidone, 1-2 parts of polydimethylsiloxane, 1-2 parts of polyoxyethylene, 5-10 parts of octaphenylsilsesquioxane, 3-5 parts of propylene glycol, 1-3 parts of polyethylene glycol, and 1-4 parts of tourmaline ore powder. The bamboo wood fiber negative ion decorative line batten solves the technical problems of poor properties of strength, toughness, thermal stability abrasion resistance and the like caused by poor interfacial compatibility of the wood-plastic composite material in the prior art, and poor environment-friendliness.