The present invention relates to the triterpene compounds improving in brain functions. In particular, the present invention relates to a novel use of the triterpene compounds represented by the formula 1 for improving decreased memory and a pharmaceutical composition for improving brain functions comprising the triterpene compounds represented by the Formula 1:Wherein R1, R2and R4are independently CH3and R3is H R1and R2are independently CH3, R3is H and R4is CH2OH or R1, R2and R4are independently CH3and R2is H.本發明係關於可改善腦部功能的三萜類化合物。特別是使用式1所代表的三萜類化合物來改善失智以提高腦部功能的新穎用途及包含式1所代表的三萜類化合物作為活性成分之以改善腦部功能的藥學組合物:其中R1、R2及R4分別為CH3且R3為H;R1及R2分別為CH3,R3為H且R4為CH2OH;或R1、R3及R4分別為CH3且R2為H。