The invention discloses a plant fiber environmental protection decorative sheet. The decorative sheet is prepared from, by weight, 30-50 parts of carbon dust, 2-10 parts of resin, 5-20 parts of plant fiber, 1-4 parts of fire retardant, 1-5 parts of dispersing agent, 1-5 parts of zeolite powder, 2-6 parts of tea pole dregs, 5-15 parts of foaming control agent, 3-8 parts of CPE, 1-5 parts of yellow foaming agent, 1-5 parts of stearic acid, 2-7 parts of stabilizer, 30-50 parts of PVC, 20-50 parts of calcium powder, 10-20 parts of bamboo powder and 10-20 parts of bamboo ash. According to the plant fiber environmental protection decorative sheet, the preparing technique is very simple, the preparing process is environmentally protective and pollution free, and the prepared decorative sheet is capable of adsorbing and degrading hazardous substances such as sulfide, nitride, formaldehyde, benzene and phenol; meanwhile, the plant fiber environmental protection decorative sheet is low in production cost and good in economic benefits.