To reduce the position errors with cross-location method,this paper proposes a location method with Lissajous figure to determine the position at which dist urbance signal occurs.By analyzing and processing the Lissajous figure synthetized by actual signals,the fi tting ellipse can be obtained by fitting the acquisition data.The relations between elliptical parameters and the delay are investigated in detail.Experimental results illustrate that semi-major axis and semi-minor axis of the ellipse are in a li near relation to delay time and the semi-minor axis is more sensitive to delay time.By evaluating the semi-minor axis,the dist ur bance position can be determined.Based on the Mach-Zehnder inteferometer fiber distributed sensing system at a distance o f 2km in the laboratory,a large number of experimental tests are conducted with the prososed location method based on Liss ajous figure and the traditional cross-location method.It can be found that in a sampling rate of 2Mb/s,the pr oposed location method can reach an accruracy of 100m and the position e rror of 50m with multi ple measurements,which are better than those of the cross-location method.The method doesn′t need to prepare prior knowledge of signals and noise statistics,and its location resolution is determ ined by the sampling frequency.This method can provide a beneficial reference on location methods for fiber distribu ted disturbance sensing system.