A composition for preparing an emulsion or microemulsion, the composition including the following components (A) to (D):component (A): an active ingredient having a solubility in water at 20° C. of 200 ppm or lesscomponent (B): a water-insoluble solvent having no alcohol groupcomponent (C): at least one nonionic surfactant selected from the group consisting of a polyoxyalkylene alkyl ether, a polyoxyalkylene alkenyl ether, a polyoxyalkylene alkyl amino ether, and a polyoxyalkylene alkenyl amino ether andcomponent (D): a monohydric alcohol having 8 to 12 carbon atoms.
