The invention relates to a healthcare food for qi-deficiency constitution and a preparation method thereof. The healthcare food is prepared from medicinal and edible raw materials: rhizoma polygonati, platycodon grandiflorum, Chinese yam and ginseng as effective drug components and auxiliary adding ingredients allowed in drug and food. Each effective medicinal and edible dual-purpose component is prepared from the following raw materials in parts by weight: 75-250 parts of rhizoma polygonati, 30-105 parts of platycodon grandiflorum, 54-180 parts of Chinese yam and 9-45 parts of ginseng. The healthcare food has the effects of replenishing qi to invigorating the spleen, and nourishing the heart and kidneys aiming at people with qi-deficiency constitution.