In a plasma display device, a temperature-monitoring electrode for monitoring a panel temperature is parallely arranged with at least either one of a display electrode and a scan electrode, or an address electrode in a PDP. And, a resistance-value monitoring circuit for monitoring a resistance value of the temperature-monitoring electrode is connected to the temperature-monitoring electrode, and further, a temperature-converting circuit for converting the resistance value monitored by the resistance-value monitoring circuit into a temperature is connected to the resistance-value monitoring circuit. And, respective driver drives respective electrode with applying a driving waveform and/or a driving voltage suitable for the temperature converted by the temperature-converting circuit, so that a useless margin design is unnecessary, and as a result, a performance in a normal-use situation can be improved.