A Plasma Display Panel (PDP) includes: an upper substrate; a lower substrate facing the upper substrate; upper barrier ribs disposed between the upper and lower substrates to define a plurality of discharge cells together with the upper substrate; discharge electrodes adapted to generate a discharge in the plurality of discharge cells; lower barrier ribs formed between the upper barrier rib and lower substrate along a row of the plurality of discharge cells to define a plurality of flow paths by which the discharge cells communicate with each other; a phosphor layer applied at the same level as the lower barrier ribs; and a discharge gas contained within the plurality of discharge cells. Flow resistance is reduced when an impure gas is exhausted and when the discharge gas is injected into the panel, and the product yield and quality of the display are improved, and light emission efficiency is improved and degradation of the phosphor material is avoided.