A high-definition, high-reliability plasma display panel having a simple structure and having a stably ensured gas-exhaust passage. In the plasma display panel, display electrodes and address electrodes crossing these display electrodes are provided between a pair of substrate defining an electric discharge space, display lines produced by surface discharge are provided between adjacent display electrodes, discharge luminous regions are provided at cross sections between display lines and address electrodes, partitions (29) for defining discharge luminous regions for each line and for each column by first wall sections (29a) extending in the line direction in which the display electrodes are provided and second wall sections (29b) extending in the column direction in which the address electrodes are provided, nondischarge regions (31) are formed at interlinear sections which are sections between adjacent display lines, auxiliary partitions (32) projecting the first or second wall sections (29a or 29b) of the partitions (29) defining the nondischarge region (31) are formed by baking a material having a thermal shrinkability. Since the thermal shrinkage by the baking in the height direction is uneven, the height of the top part is partially greater than those of the top parts of the first and second partitions (29a, 29b) of the partitions defining the nondischarge regions (31).