The invention discloses a health food for improving senile dementia, which is characterized by comprising the following components in parts by weight: 15-20 parts of long crooked squash powder, 11-16 parts of lotus flower powder, 1-2 parts of Cacumen Tamaricis, 15-24 parts of asparagus lettuce powder, 1-2 parts of ephedra, 0.01-0.03 part of antler, 0.5-0.8 part of chondroitin sulfate, 0.01-0.06 part of hartshorn, 1-3 parts of radix scrophulariae, 6-8 parts of pawpaw, 8-10 parts of jelly fungi, 3-8 parts of honey, 1-2 parts of ammonium carbonate, 9-13 parts of Jerusalem artichoke powder, 1-2 parts of nard, 2-3 parts of licorice, 1-3 parts of eicosapentaenoic acid, 6-8 parts of walnut powder, 19-30 parts of broad bean, 14-25 parts of wheat, 5-8 parts of American ginseng, 2-6 parts of moutan bark, 2-6 parts of ginseng, 3-5 parts of fructose and 1-3 parts of vitamin E. The health food has high effective rate for absorption, obvious effect on improving memory, and obvious mutual amplification and synergistic effect among formula components; and the health food has favorable functions on strengthening the brain, benefiting the intelligence and improving the memory, and has the advantages of favorable absorption effect for human bodies and no toxic or side effect.