In this study, a confocal system is proposed for which super-resolution imaging can be achieved based on the negative refraction and subwavelength imaging characteristics of two-dimensional photonic crystals (PCs). Further, the focusing and imaging processes of a confocal system are simulated with the finite-difference time-domain method. When the distance from the focus to the lower surface of a PC becomes 1.55 μm and when the transverse coordinate x=4, the full width at half maximum (FWHM) of the focus becomes 0.593λ, which is less than the incident wavelength; further, the FWHM of the reflected light in the right of the image point becomes 0.496λ, which indicates that super-resolution imaging can be realized. The FWHM of the image point decreases continuously when the focus shifts to right; further, the axial resolution of the confocal system becomes 2.2λ when the pinhole and focus are fixed.