Segmented Planar Imaging Detector for Electro-optical Reconnaissance (SPIDER) is a new type of electro-optical imaging technology based on the principle of interferometric imaging. First, it utilizes the optical system with a waveguide structure to coherently sample the object in a spatial frequency domain. Then, it uses an image-processing module to restore the object image through inverse Fourier transform in the frequency domain. Its imaging principle, implementation and the influence of structure parameters on imaging are deeply studied. On this basis, the simulation verification of imaging in the wavelength range from 1.5 μm to 1.9 μm is completed. The results show that the segmented planar imaging detector for electro-optical reconnaissance has a good imaging effect.