There is provided a liquid agrochemical composition having a stable water-diluted state, which comprises 0.5 to 30% by weight of one or more hydrophobic agrochemical active compounds, 1 to 20% by weight of one or more nonionic surfactants selected from the group consisting of a polyoxyethylene polyoxypropylene block copolymer and the like, 0 to 10% by weight of one or more anionic surfactant, 6 to 60% by weight of γ-butyrolactone, and 20 to 75% by weight of 1,3-dimethyl-2-imidazolidinone and water-diluted solution obtained by diluting the liquid agrochemical composition with a 10 to 10,000-fold amount of water.
