In non-conventional oil and gas exploitation field

micro-seismic monitoring technology requireshigh resonant frequency micro-seismic sensor. In this paper

a Fiber Bragg Grating（FBG）micro-seismic geophone with high resonant frequency based on elastic light-walls tube is proposed. The mechanical model

the amplitude-frequency and the sensitivity of the geophone are theoretically analyzed and experimentally measured. Experimental results show that the resonant frequency is 1 680 Hz.In the operating range of 50

1200 Hz

the linear fitting degree is 0.998 4 and the acceleration sensitivity is 4.393 2 pm / G. The relative error is 0.15% between the experimental result and theoretical analysis.