In order to solve the problem that the acquisition of interesting information is affected by foreground occlusion in terahertz field imaging, a terahertz light field imaging occlusion culling algorithm based on multi-perspective synthetic aperture is proposed. Based on the analysis of digital refocusing principle of terahertz light field imaging, the original data of the terahertz light field is collected by using a terahertz focal plane array camera, and the depth of digital refocusing is located by determining the minimum generalization error. Finally, the reconstructed image is enhanced by using empirical mode decomposition (EMD) method. The terahertz image of the object with clear contour and interference suppression is obtained. The experimental results show that the combination of terahertz light field technology and synthetic aperture technology can effectively reduce the influence of occlusion, and it is proved that EMD method has the ability to improve the quality of terahertz image.