Disclosed is a plasma display panel which comprises a first and a second substrate arranged opposite to each other as to form a discharge space between them, a scan electrode formed on the first substrate, a sustain electrode formed on the first substrate, a dielectric layer covering the scan electrode and the sustain electrode, and a protective layer formed on the dielectric layer. The protective layer contains magnesium oxide, magnesium carbide and silicon. This plasma display panel is stable in discharge characteristics such as driving voltage, and thus displays images stably.