The invention relates to the field of modification treatment of materials for weaving crafts, and in particular, relates to a rice straw health-care aroma-enhancing anticorrosion modified soaking liquid and a use method thereof; the soaking liquid comprises the raw materials in parts by weight: 1-2 parts of sodium benzoate, 12-15 parts of potassium tartrate, 12-15 parts of polyethylene glycol, 0.5-1 parts of agastache rugosus, 0.2-0.3 parts of rhizoma coptidis, 1-3 parts of mosla chinensis maxim, 12-15 parts of sodium chloride, 4-5 parts of alkyl polyglucoside, 1-2 parts of chitosan, 250-280 parts of water, and 4-5 parts of an auxiliary agent; the prepared soaking liquid contains no volatile toxic organic ingredients, potassium tartrate, sodium chloride, alkyl polyglucoside and other ingredients have the efficacies of softening rice straw, preventing imbibition and cracking, preventing corrosion and the like, and greatly improve the use performance of the rice straw; water decoctions of agastache rugosus, rhizoma coptidis, mosla chinensis maxim and other Chinese herbal medicines can endow the rice straw with a unique aroma and an anticorrosion efficacy and have no harm to human health; the treated rice straw is more workable for molding, and the time and labor are saved in the machining process; and the product is safe and environmentally friendly, contains health-care traditional Chinese medicine ingredients, can be directly contacted with skin, can kill a variety of pathogenic bacteria, and is durable in use.