The invention discloses a water chestnut enzyme nutrient solution. The water chestnut enzyme nutrient solution is prepared from components in parts by weight as follows: 55-70 parts of water chestnut,6-15 parts of poria cocos, 22-36 parts of kiwi fruit, 5-14 parts of pogonatherum crinitum herb, 5-12 parts of semen plantaginis, 4-10 parts of herba lysimachiae, 8-15 parts of bulbus fritillariae thunbergii, 6-10 parts of semen sterculiae lychnophorae, 5-15 parts of white sugar, 5-9 parts of bacteria strain and 500-600 parts of water. The water chestnut enzyme nutrient solution has the followingbeneficial effects: the water chestnut enzyme nutrient solution clears away heat and toxic materials, can clear away lung heat, contains rich viscous substances, has the special health effects of promoting fluid production to nourish the lung, reducing phlegm, benefiting bowls, promoting diuresis, relieving stranguria, resolving carbuncle, removing toxin, cooling blood, resolving dampness, eliminating undigested food by promoting digestion and the like, and has no toxic or side effects when taken frequently; a making process is simple and easy to operate.