The invention discloses a plant health solid drink and a preparation method thereof. The plant health solid drink comprises the following raw materials in parts by mass: 3-5 parts of lycium barbarum, 1-3 parts of red dates, 4-8 parts of Chinese yam, 4-6 parts of hawthorn, 25-35 parts of wheat, 4-8 parts of gorgon euryale seeds, 3-5 parts of soybeans, 20-30 part of brown sugar, 7-11 parts of longan, 4-6 parts of semen coicis, 1-3 parts of clove and 1-3 parts of amomum tsao-ko. The modern medical study shows that the traditional Chinese medical dietary therapy regimen has the advantages which are possessed by the western medicines. The preference of foods can correct the deviation of bodies, and no unexpected side effect is caused to the human bodies. When being added into traditional Chinese medical dietary therapy healthcare and used in the plant solid drink, the cereal can be conveniently and rapidly taken. The plant health solid drink has beneficial functions in adjusting the yin and yang balance of human bodies and improving the sub-health status.