To enhance the emission voltage response and electromechanical coupling coefficient for improving the piezoelectric performance, a novel 3-2-2 ceramic-air-polymer composite is designed based on a 1-3 type piezoelectric composite. By analyzing the theoretical electromechanical properties of the piezoelectric ceramic arrays and combining the modeling of the sensitive elements with finite element simulation software and physical field calculations, the emission voltage response and resonance frequency of the sensitive elements are determined, and the frequency differences corresponding to different sizes are compared to determine the optimal size of the polymer. The experimental results show that the electromechanical coupling coefficient of the new 3-2-2 composite transducer is increased by 0.02 and the emission voltage response is increased by 2 dB when compared with traditional 1-3 piezoelectric composite material. Therefore, a new 3-2-2 composite material is expected to develop a high-performance piezoelectric transducer.