Micro in-plane displacement measureme nt using digital speckle correlation method (DSCM) based on phase vortices is proposed in this paper.First we get a matrix o f vortices distribution through Laguerre-Gauss transform,which turns real-valued signals I (x,y) of the intensity gray image into complex intensity signals (x,y).T hen we take eccentricity of the core structure parameter as characteristic factor to make correlation operation.Finally,the mic ro in-plane displacement can be measured.Under the same computer configuration,the in-plane displacement of the roughness glass was measured.The average calculating time o f this proposed method was 35.4ms,however,the average calculating time of the t raditional DSCM was up to 376.7ms.Experimental results are well agreed with the numerical simulation results.Results show that the speckle phase vortices correlation method can exactly measure micro in-plane displacement.Compared wi th the traditional DSCM,the calculation time increases at least one order of magnitude in keeping equivalent measuring accuracy.