The present invention provides uses of chlorogenic acid in the preparation of medicaments for treatment of oligodendroglioma. Chlorogenic acid according to the present invention has an inhibitory action against oligodendroglioma, and can inhibit the growth of brain tumor stem cells, thus can partly substitute chemoradiation. Chlorogenic acid can alleviate the unwell response of patients caused by chemoradiation, and become a new medicinal therapeutic means and choose for treatment of oligodendroglioma.
