Traditional Chinese medicine for preventing senile dementia

The invention discloses a traditional Chinese medicine for preventing senile dementia. The traditional Chinese medicine is prepared from the following raw materials in parts: 1-3 parts of astragalus root, 1-3 parts of tuber of multiflower knotweed, 1-3 parts of epimedium, 1-2 parts of fructus alpiniae oxyphyllae, 1-2 parts of red sage root, 0.5-2 parts of polygaege, 0.5-2 parts of tuckahoewithpine, 0.5-2 parts of akebiaquinata, 0.5-2 parts of cortex moutan radicis, 0.3-1 part of rhizoma ligustici wallichii, 1-3.5 parts of grass-leaved sweetflag, 0.5-2 parts of oriental waterplantain rhizome, 0.5-2 parts of root of doubleteeth, 0.5-2 parts of liqiorice, 0.25-1 part of peppermint, 0.25-1 part of herba schizonepetae, 0.25-1 part of gentiana macrophylla and 0.25-1 part of ginseng. The invention can effectively treat the senile dementi, eliminate the senile dementi activities of the old, e.g. fragmentation, language loss, dotage, dizzy and the like, and enable the health condition to be well restored.