New method of measuring dynamic frequency response of piezoelectric ceramic with interference is put forward. The theoretical analysis and experimental method are discussed and the experimental set-up is established. The system consists of a Twyman-Green interferometer and a photoelectric conversion and measuring system. It allows operation frequency up to 5kHz. The experimental results show that the method is simple, easy to achieve, and can be used to measure the dynamic frequency response property of piezoelectric ceramic in wide range with high precision.