Abstract: In the study of sea bottom sediments in the depth ranging 100-1100 m, the small group interval high-resolution multi-channel seismic system is effective to acquire high signal-to-noise ratio data and high resolution seismic data, and helpful for selection of suitable seismic acquisition parameters. The small group interval high-resolution multichannel seismic acquisition technology is also useful to natural gas hydrate exploration, selection of appropriate seismic acquisition parameters and data processing parameters. It may improve the resolution in the study of shallow strata and hydrate beds. The selection of marine seismic acquisition parameters is very important, and the increase in sampling rate will help the subsequent seismic data processing so as to improve the resolution of stratigraphic divisions.