The NVH problem of scroll air-conditioning compressor is mainly the noise complaint caused by exhaust pulsation. The analysis of the causes of peak noise spectrum has practical significance to improve this kind of problem. With the help of Siemens LMS testlab software and ANSYS simulation software, the natural frequency of static disk module is tested and simulated. The results show that the first-order natural frequency is 333 Hz and 311 Hz respectively, the first-order vibration mode is the bending vibration of the exhaust valve plate of the static disk component, and the measured results are basically in agreement with the peak value of the near-field noise spectrum of the compressor at 338 Hz, it is shown that the exhaust valve plate is forced to vibrate at a specific frequency by the impact of air flow in actual operation, and then produces aerodynamic noise. At the same time, compared with the first three-order natural frequency test and simulation results, the error of the two method is about 5–9%, which verifies the reliability of the test and simulation method, and lays a foundation for the follow-up research of the same type.