In order to improve the output amplitude of conventional ultrasonic consolidation vibration devices and meet the requirements of stable consolidation of metal sheets， a double-head ultrasonic consolidation vibration device with single-side double-transducer structure was proposed. Based on the resonant system design theory， the size parameters are designed， and the modal analysis and optimization of the device were carried out. The optimal longitudinal vibration frequency was 20 247 Hz. Based on the equivalent four-terminal network method， the ultrasonic consolidation vibration device with two vibration heads was modeled and simulated， and the maximum output amplitude could reach 36 μm. Finally， a prototype was made to test the amplitude and explore the relationship between the output amplitude and the excitation voltage. The experimental results show that the output amplitude is linearly correlated with the excitation voltage. The maximum output amplitude of the device is 34.4 μm， and the error rate of the simulation results is less than 5%. The rationality of the structure is verified， the output amplitude of the device is improved effectively， and the application of ultrasonic consolidation technology in related fields is promoted.