Abstract: In this paper, the reasonable setting of window function of exponential filter in near-field acoustic holography based on spatial two-dimensional Fourier transform is analyzed and optimized. According to the optimization effect, some suggestions are given for the reasonable setting of the window function parameters of the exponential filter at a certain sound source frequency. At the same time, the corresponding relationship between the optimal setting of exponential filter parameters and sound source frequency is studied, and the optimal setting of exponential filter parameters corresponding to different sound source frequencies is found. The results show that compared with the change of the steepness coefficient of the window function, the change of the cutoff wave number of the filter has a more obvious influence on the reconstruction effect; when the sound source frequency varies from 100 Hz to 1 500 Hz, with the increase of the sound source frequency, the optimal value of the steepness coefficient of the exponential filter window function decreases while the optimal value of the filter cutoff wave number increases.