PROBLEM TO BE SOLVED: To provide a water-based agrochemical composition which rationally and efficiently prevents peeling or loss of an active ingredient due to weather after a water-diluted liquid thereof is sprayed, compared to a conventional method, and which has enhanced retaining property.SOLUTION: The water-based agrochemical composition contains (A) a microcrystalline wax, (B) a surfactant and (C) an agrochemical active component.
