Abstract: With the development of high-resolution seismic technique, the quality of instruments such as geophones must also be improved. If only there is primary reflection from the subsurface, particularly the relatively high frequency primary reflections from the deep surface, the office processing will continue. Although the dynamic range of a digital geophone is the same as that of the currently applied geophone, it doesn't change the signal and preserves the true signal. With the experiments on digital geophones, we find, the difference between a single digital geophone and a universal one is not obvious, and the signal/noise ratio is lower than that of the universal geophone array, but the frequency band of the digital geophone is superior to the universal one, so is the energy. The data recorded by the digital geophones can be improved with office array in the signal/noise ratio aspect without its frequency band affected. From the entire seismic section, we also conclude that the resolution of the digital geophone is better than that of the universal geophone.