A plasma display panel is provided with a front plate, and a rear plate disposed so as to face the front plate. The front plate has a display electrode, a dielectric layer to cover the display electrode, and a protective layer to cover the dielectric layer. The protective layer includes a base layer formed on the dielectric layer, and a plurality of aggregated particles dispersed on an entire surface of the base layer. Each of the aggregated particle includes a plurality of crystal particles made of metallic oxide and aggregating to one another. The base film contains MgO, Ce and Ge. In the base layer, a concentration of Ce is at least 200 ppm to at most 500 ppm, and a concentration of Ge is at least 100 ppm to at most 5000 ppm.