Abstract: The geometry parameters greatly affect the data processing and interpretation. Unfortunately, being limited by some objective conditions and by the understanding on underground geological characteristics, some acquisition parameters can not satisfy the requirement of data processing and interpretation. By using the 3D high-resolution seismic data from the Junggar basin, the degradation processing experiment of the acquisition parameters such as the bin, the number of shot, and the array length was performed and the effect of these parameters on the final stack profile was discussed. The results show that 1) changing the size of bin will result in a decrease of fold, affecting the signal-to-noise ratio and resolution, 2) reducing the number of shot will also decrease the fold number and affect the signal-to-noise ratio and, at the same time, the receiving of reflection information at shallow layers will be affected because of the change in the distribution of offset, and 3) changing the array length will shift the offset, affecting the reflection amplitude and the accuracy of velocity analysis.