Disclosed is a health maintenance pillow for preventing senile dementia. Raw materials of a pillow inner of the health maintenance pillow comprise, in weight ratio, 50-70 grams of acorus gramineus, 60-70 grams of ophiopogon roots, 70-80 grams of cistanche, 50-60 grams of ginseng, 40-50 grams of sealwort, 50-60 grams of polygala, 50-60 grams of platycladi seeds, 40-50 grams of tuckahoe and 50-60 grams of spina date seeds. Herbaceous plants are taken as the raw materials to expand blood vessels of brains, oxygen, glucose, amino acid and phospholipid absorption of cerebral cortex cells is enhanced, recovery of brain cells is promoted, functions of functional brain cells are improved, so that a patient has a fine sleep state and sleep quality to ensure normal living conditions and daily performances, and memory can be improved.