A plasma display apparatus is provided that includes a front substrate, a plurality of first and second electrodes formed on the front substrate, a rear substrate that is faced with the front substrate, a plurality of third electrodes formed on the rear substrate, and a discharge cell that is disposed where the first, and second electrodes intersect with the third electrode, wherein at least one of the plurality of the first and second electrodes is formed with one layer, wherein a thickness of at least one of the plurality of the first and second electrodes ranges from 3 .mu.m to 7 .mu.m. By removing the transparent electrode consisting of ITO, the manufacturing cost of the plasma display panel may be reduced. Further, by forming projecting electrodes protruded to the opposite direction of the center of the discharge cell or in the direction of the center of the discharge cell from the sustain electrode line or the scan electrode, the firing voltage may be lowered, and the discharge diffusion efficiency in the discharge cell increased.