Pesticide composition containing sanguinarine (macleaya alkaloids) and preparation method thereof

The invention relates to the technical field of pesticide, in particular to a pesticide composition containing sanguinarine (macleaya alkaloids). The pesticide composition is prepared from, by weight, 0.1-30% of first pesticide, 0.1-80% of second pesticide, 5-80% of auxiliaries and 14.9-94.8% of a solvent or filler. The first pesticide is sanguinarine. The second pesticide comprises one of amino-oligosaccharin, cnidium lactone, spinosad, santonin, azadirachtin, wilforgine, neochamaejasmin, hyoscyamine and matrine. The auxiliaries comprise one or more of surfactant, a synergistic agent, an emulsifier, an anti-freezing agent, a dispersing agent, a wetting agent, a thickening agent, an ultraviolet protecting agent, a defoaming agent and an adhering agent. The pesticide belongs to plant source compound pesticide, the compound synergistic effect is remarkable, the pesticide composition can be used for preventing and treating various plant diseases, and pollution of chemical pesticide to the environment is reduced.