The invention relates to a wood-plastic composite material with lavender scent. The composite material comprises, by weight, 11 parts of waste polypropylene, 12 parts of high-density polyethylene, 32parts of camphor wood powder, 12 parts of chestnut shell powder, 4 parts of bran shells, 4 parts of refractory brick powder, 14 parts of ceramic fibers, 12 parts of polyacrylonitrile-based carbon fibers, 12 parts of natural rubber, 12 parts of PVC resin, 2 parts of ABS resin, 5 parts of an acrylate copolymer, 1.5 parts of artificial stone powder, 2.5 parts of ntimony trioxide, 3.5 parts of chitosan, 2 parts of talcum powder, 0.2 part of straw ash, 2 parts of magnesium oxide, 3.5 parts of zinc stearate, 1.5 parts of a titanate coupling agent, 1.5 parts of sodium phosphite, 5 parts of polyethylene wax, 2 parts of chitin, 4 parts of a lavender essence and 0.6 part of guanidine sulfamate. The composite material has excellent comprehensive performances; and the addition of the lavender essenceand chitosan makes the composite material have an antibacterial effect and also have the lavender scent.