An electrode structure of a capacitive touch panel is provided, which includes a plurality of receiving electrodes and a plurality of driving electrodes. Each of the receiving electrodes has a hexagonal electrode structure. Each of the driving electrodes includes a main region. Each of the main regions has a quadrilateral electrode structure. The area of each driving electrode is larger than that of each receiving electrode. By using the foregoing electrode structure, the capacitive touch panel can not only provide sensing signals with less noise but also increase the intensity of input signals to enhance the signal to noise ratio.