The invention discloses an inorganic filling material modified high-molecular absorbent. The inorganic filling material modified high-molecular absorbent is prepared from, by weight, 3 to 4 parts of bentonite, 2 to 3 parts of calcium carbonate, 1 to 2 parts of hexadecyl trimethyl ammonium bromide, 0.3 to 0.5 parts of liquid paraffin, 0.2 to 0.3 part of titanate coupling agent TC-F, 23 to 25 parts of butyl methacrylate, 22 to 24 parts of tetradecyl acrylate, 4 to 5 parts of tetradecyl acrylate, 21 to 23 parts of ethyl acetate, 1 to 1.2 parts of azodiisobutyronitrile, 0.15 to 0.2 part of ethylene glycol dimethacrylate, 0.9 to 1.2 parts of p-methylstyrene, 1.8 to 2.5 parts of divinyl benzene, 1 to 2 parts of nano aluminium hydroxide, 0.05 to 0.07 part of silane coupling agent kh450, 1 to 1.2 parts of di(isooctyl) phosphate, 0.5 to 0.6 part of silicone oil, and an appropriate amount of distilled water. The inorganic filling material modified high-molecular absorbent is wide in application range, rapid in absorption speed, and convenient and efficient for application.