▎ 摘　　要

NOVELTY - Soil repairing modifying agent comprises 150-200 pts. wt. polyvinyl acetate emulsion, 8-10 pts. wt. nano-magnesium oxide, 8-10 pts. wt. nano-alumina, 6-15 pts. wt. graphene oxide and 5-10 pts. wt. microcrystalline cellulose. USE - Modifying agent for repairing soil. ADVANTAGE - The soil repairing modifying agent effectively realizes the fixation of soil heavy metal ions. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing modifying agent for repairing soil, which involves: (A) taking 150-200 pts. wt. polyvinyl acetate emulsion, 8-10 pts. wt. nano-magnesium oxide, 8-10 pts. wt. nano-alumina, 6-15 pts. wt. graphene oxide, and 5-10 pts. wt. microcrystalline cellulose; (B) firstly adding graphene oxide, nano-magnesium oxide, nano-alumina and microcrystalline cellulose to the polyvinyl acetate emulsion, and ultrasonically dispersing uniformly to obtain a dispersion; and (C) ball-milling and mixing the dispersion liquid, and discharging the material to obtain soil repairing modifying agent.