A plasma display panel and a driving method thereof is adaptive for realizing high efficiency. In the plasma display panel, a sustaining electrode pair and an address electrode are included in each discharge cell. A first dielectric layer covers the sustaining electrode pair. To induce a discharge of the sustaining electrode pair, a floating electrode pair is formed parallel thereto on the first dielectric layer. A second dielectric layer and a protective film cover the floating electrode pair. Accordingly, two auxiliary electrodes are provided between the sustaining electrode pair so that when a voltage is applied to the sustaining electrode pair, the voltage is driven into the auxiliary electrodes. A primary discharge is thus induced between said auxiliary electrodes at a low voltage and therefore a long-path discharge is induced between the sustaining electrode pair at a low voltage, even though they are distanced apart from each other.