The invention discloses a semiochemical compound color plate and a preparation method thereof. The semiochemical compound color plate comprises a substrate provided with colors, wherein the surface of the substrate is coated with insect gluing viscose, and the insect gluing viscose is formed by mixing sticky mucilage glue and appropriate semiochemicals according to a certain proportion. The synergistic action of the semiochemicals and visual information to food taking, oviposition and other actions of insects is utilized to optimize the color wavelength of each insect, semiochemical components are combined with a viscose plastic (PP (polypropylene), PVC (polyvinyl chloride) or PE (polyethylene)) or paper color plate to prepare the semiochemical compound color plate, the short distance ofthe visual information is overcome, the trapping efficiency and the trapping range are greatly increased, and male and female injurious insects can be trapped. The semiochemical compound color plate can be used for trapping aphids, aleyrodids, liriomyza sativae, diamond back moths, empoasca vitis, aleurocanthus spiniferus, thrips and various other hemiptera, homoptera, lepidoptera and diptera injurious insects, particularly insects hidden under leaf surfaces or in the shadow. The utilization efficiency of the color plate is greatly improved, and the dosage of the color plate is reduced so as to reduce the cost.