In order to measure the in-plane displacement,a scheme to measure the displac ement of a deformed object based on the Talbot effect is proposed.For the test,w e use a computer-controlled liquid crystal spatial light modulator (LC-SLM) and the computer-generated Talbot array hologram.A Talbot array hologram is generated and displayed on the LC-SLM screen,and the diffracted intensity is captured by a C CD camera.The information about the displacement is codified in the intensity pattern.The displacement can be obtai ned by the digital speckle correlation measurement (DSCM).This method is simple and easy,and can be used as an alternat ive method to measure displacement.Experimental results demonstrate the efficacy of the proposed meth od for the in-plane displacement measurement.