A kind of ventilative grain structure of moisturizing that plants cultivation is that the surface of an ontology has plural recess portion and plural number protrusion； Plural moisturizing capillary is formed in the body interior, and respectively one end of the moisturizing capillary is pore, and the position what body surface. Such moisture can be retained in the respectively moisturizing capillary, and each recess portion of the ontology and each protrusion can thereby improve the gas permeability planted and plant soil with the mixing of Zinc fractions loosening property.一種用於植栽的保濕透氣顆粒結構，係一本體的表面具有複數凹部與複數凸部；複數保濕毛細管形成在該本體內部，各該保濕毛細管的一端為毛細孔，且位於該本體表面。如此水分可以保留在各該保濕毛細管內，且該本體的各凹部與各凸部可與土壤形成鬆動性的混合，藉此提高植栽土壤的透氣性。
