The invention discloses a traditional Chinese medicine composition for improving memory and a preparation method thereof. The composition is prepared from such medicinal raw materials as panaxadiol glucoside, ophiopogon root, asparagus, spina date seed, platycladi seed, dangshen, radix scrophulariae, dogwood, fructus alpiniae oxyphyllae, semen cuscutae and the like. The invention also provides a preparation method of the traditional Chinese medicine composition for improving memory. For a mouse dosed with the traditional Chinese medicine composition disclosed by the invention, in a step-down test and an Morris water maze test, the number of errors is decreased significantly (P is smaller than 0.05, P is smaller than 0.01), which is obviously superior to that of a control group and has an obvious difference with the control group (P is smaller than 0.05, P is smaller than 0.01), so that the traditional Chinese medicine composition disclosed by the invention can be considered to play a memory perfecting and consolidating effect on the mouse.