The invention belongs to the field of healthcare products and particularly relates to a water absorption composition and a preparation method and application thereof. The composition is prepared from, by weight, 10-90 parts of mineral soil, 1-80 parts of
plant powder or
plant extract and 1-20 parts of
plant essential oil. The mineral soil is selected from at least one of
bentonite, activated
red soil, activated clay, diatomite, kaolin, attapulgite and white
sericite; the plant extract is selected from at least one of folium artemisiae argyi extract, fructus cnidii extract, radix sophorae flavescentis extract, herba leonuri extract, stigma croci extract,
flos chrysanthemi indici extract and radix euphorbiae extract; the plant
essential oil is selected from at least one of
lavender essential oil, rose essential oil, cedarwood essential oil, lemon essential oil, clove essential oil, perilla essential oil and
tea tree essential oil. By cooperation and
joint action of the raw materials in a specific ratio, a function of water absorption can be achieved. The composition only comprises three raw materials and is simple in
raw material composition and low in production cost.