Because of the high frequency vibration will be introduced for the piezoceramic plate in in-plane resonant frequencies, the temperature in the specimen will increase rapidly with a short time period. The design of the electrode on the two surfaces of the piezoceramic plate will influence the dynamic characteristics of the piezoceramic plate and there are very few results available in the literature. The experimental measurement of resonant frequencies for the piezoceramic plate is generally performed by the impedance analysis. In this study, we investigate the vibration characteristics of piezoceramic plates with different electrode designs. The influence of the electrode and temperature effect on the in-plane vibration in resonance of piezoceramic plates will be discussed in detail in this project. The electric flux calculated by finite element numerical calculations are also performed, and the results will be compared with the experimental measurements. The temperature distributions of PZT plate excited at different resonant frequencies are obtained by infrared thermograph to indicate the influence on temperature field. From combination of the results obtained from theoretical prediction and experimental measurement, the dynamic characteristics of piezoelectric plate in resonance are completely analyzed.