NOVELTY - A botanical synergistic acaricide composition comprises Ligusticum wallichii oil and wintergreen oil. The composition is in the form of miscible oil, microemulsion, or aqueous emulsion.    USE - Botanical synergistic acaricide composition used for preventing and killing Tetranychus viennensis, T. cinnabarinus, Zhejiang grass leaf mite and T. urticae of fruit trees, vegetables and flowers.    ADVANTAGE - The composition is environmentally friendly, contains no chemical pesticide ingredients, and has low toxicity to human and livestock.    DETAILED DESCRIPTION - A botanical synergistic acaricide composition comprises Ligusticum wallichii oil and wintergreen oil. The composition is in the form of miscible oil comprising (wt.%) Ligusticum wallichii oil (1-50), wintergreen oil (1-50), organic solvent (0-30), emulsifier (5-15), synergistic agent (0-20), freezeproof agent (5-40), and water (balance); microemulsion comprising (wt.%) Ligusticum wallichii oil (1-50), wintergreen oil (5-50), organic solvent (0-20), surface active agent (5-30), synergistic agent (0-20), freezeproof agent (4-10), and water (balance); or aqueous emulsion comprising (wt.%) Ligusticum wallichii oil (1-50), wintergreen oil (5-50), organic solvent (0-20), surface active agent (5-20), synergistic agent (0-20), freezeproof agent (4-10), thickener (0.2-1), and water (balance). An INDEPENDENT CLAIM is included for preparation of composition by (i) mixing Ligusticum wallichii oil, wintergreen oil, organic solvent, emulsifier, synergistic agent and penetrant; uniformly stirring; and detecting quality to obtain miscible oil; (ii) mixing Ligusticum wallichii oil, wintergreen oil, organic solvent, surface active agent, synergistic agent, freezeproof agent and water; stirring until the solution is transparent; and detecting quality to obtain microemulsion; or (iii) mixing Ligusticum wallichii oil, wintergreen oil, organic solvent, surface active agent, synergistic agent, freezeproof agent, thickener and water; emulsifying and dispersing in high-speed shearing machine; and detecting quality to obtain aqueous emulsion.