The present invention provides administration methods for CDPC for treating stroke. CDPC was delivered via ECS at a concentration of 40 mmol/L-60 mmol/L. In a specific embodiment of the present invention, the concentration of CDPC administered is 50 mmol/L, CDPC is delivered at one time, the flow rate of administration is 0.2 μL/min, the volume of CDPC is 1.33 μL/mL of brain tissue, and the CDPC is administered in the caudate nucleus. The method can decrease the concentration of CDPC entering the brain and further decrease the dosage while improving efficacy. Thus, the result is improved and the probability of adverse effects due to the drug is reduced.
