The utility model relates to a special agricultural residual-purified instant granule for plants. The special agricultural residual-purified instant granule comprises a cured organic fertilizer sphere which is located in a plant fibrous body which has an ellipsoid structure, a water-absorbing silica gel layer, a Chinese herbal medicine layer and a polymer controlled-release formulation layer are coated at the outer side of the plant fibrous body sequentially, a calcium carbonate powder layer is coated at the outer side of the polymer controlled-release formulation layer, a coloring agent layer is coated at the outer side of the calcium carbonate powder layer, and turfy soil is coated at the outer side of the coloring agent layer. The special agricultural residual-purified instant granule is simple in structure and reasonable in design, aims at pollution problem of the soil environment such as soil caking, and can be used for effectively improving the quality of soil, enhancing the soil water storage and fertilizer storage capabilities and increasing the organic characteristic of the soil by taking measures of improving the water absorption energy of the soil and curing heavy metal residues, thus improving the quality of plant grown in the soil.