Abstract: In order to solve the problem that the traditional time-delay superposition imaging is easy to produce artifacts, which leads to the defects not easy to be identified and the imaging resolution is poor, the virtual time reversal technology and elliptic positioning method were proposed to initially locate the damaged area. Then the difference signal was intercepted in the corresponding time window. Finally, the problem of artifacts and resolution was solved by combining the time-delay superposition imaging. In this paper, ABAQUS software was used to simulate the propagation process of Lamb waves in damaged aluminum plate. Firstly, virtual time reversal method was used to obtain the focused reconstruction signal of the initial response signal, and then the accurate time delay was used to make the initial positioning range of the ellipse. Therefore, the corresponding time window was obtained to intercept the difference signal. Finally, the damage was imaged by using the time-delay overlay imaging technology. The simulation and experimental results showed that this method reduced the difficulty of operation, improved the imaging clarity, which can identify the damage location accurately and effectively. It improved the damage location detection accuracy of aluminum plate.