PROBLEM TO BE SOLVED: To provide an agricultural submerged application granular composition having excellent water surface diffusibility.SOLUTION: The agricultural submerged application granular composition includes pesticide active ingredients, glassy micro-hollow bodies, and an acid. A package produced by packing the composition with a water-soluble film is also provided. When the composition is applied in the form of a package, wherein the composition is packed with the water-soluble film, to a paddy field water surface, without respect to storage conditions of the package, the composition exhibits good water surface diffusibility in the flooded paddy field. Since the pesticide active ingredients are spread uniformly over the whole surface of the paddy field, good biological effect can be achieved while hardly causing chemical injury.