Abstract: An improved process for producing modified zinc acrylate fine powder is disclosed, comprising adding acrylic acid in a organic liquid medium and reacting in the presence of zinc oxide and fatty acid, and after completing of the reaction, adding nonionic surfactant, blending homogeneously, removing said organic medium and water by distillation under reduced pressure and simple pulverizing. The process can attains uniform diffusion in a state very rarely inducing fast adhesion or formation of cluster in the drying step, and, permits easy pulverization into a fine powder, 99% of which has a particle size<44 &mgr;m and thereby can be used directly without needing any sieving.