An aqueous agricultural-chemical suspension composition which contains an agricultural-chemical active ingredient highly soluble in water and, despite this, is prevented from suffering particle growth with time. The aqueous agricultural-chemical suspension composition comprises (A) an agricultural-chemical active ingredient which was a water solubility at 20 °C of 2 g/100 ml or higher and is solid at ordinary temperature, (B) at least one water-soluble compound selected from the group consisting of (B1) an inorganic acid, (B2) an inorganic acid salt, (B3) a specific organic acid, (B4) a salt of the organic acid, and (B5) an alkali metal hydroxide, and (C) water, wherein the solubility at 20 °C of the ingredient (A) in an aqueous ingredient (B) solution in which the proportion of the ingredient (B) to the water is the same as in the composition is less than 2 g/100 ml. Also provided is a process for producing the composition.
