A water dispersible granule formulation prepared by pulverized a part of active ingredients into fine particles under wet milling and pulverized another part of the active ingredients into coarse particles under dry milling, then kneading the both active ingredients for the granulation, and a process for producing the water dispersible granule formulation are disclosed. The water dispersible granule formulation according to the present invention is applicable for production of a water dispersible granule formulation comprising an active ingredient which is easily decomposed owing to environmental conditions and allows to provide the water dispersible granule formulation provided with enhanced initial and residual biological activities.