The invention discloses a high-performance wood-plastic composite material which is prepared from polypropylene resin particles, polyvinyl chloride resin particles, basalt fibers, dilauryl thiodipropionate, sterin, zinc stearate, propyl trimethoxy silane, wood meal, diatomite, polyethylene wax and a modified plasticizer. Under the synergic actions of the added basalt fibers, diatomite, wood meal and modified plasticizer, the mechanical properties of the high-performance wood-plastic composite material are greatly improved, the tensile strength is enhanced by 168% or above as compared with the common wood-plastic composite material, the bending strength is enhanced by 104% or above as compared with the common wood-plastic composite material, and the impact resistance is greatly enhanced.