Abstract: In order to explore the connection between DBD plasma discharge power and different excitation parameters, a simplified two-dimensional simulation model of plate-plate electrode was constructed.The specific functional relationship between the discharge frequency, voltage and discharge power of pulse and AC sine wave excitation was studied.The simulation results showed that under certain conditions, discharge power is proportional to the peak value of the pulse voltage to the power of 1.381 and the pulse discharge frequency to the power of 1.097.In other words, there is a power function relationship between the discharge power and the peak value of the pulse voltage and the pulse discharge frequency.The relationship between the discharge power and the amplitude of the AC sine wave voltage is an exponential function, and the relationship between the discharge power and the AC sine wave discharge frequency is approximately linear.In practical engineering, when the discharge power of DBD plasma needs to be increased, the peak value(amplitude) of voltage should be increased instead of increasing the discharge frequency.