  With the help of AdS/CFT correspondence, the Einstein ring of a charged black
hole in conformal gravity has been studied. Imposing an oscillating Gauss
source on one side of the AdS boundary which propagates in the bulk, we derive
the response function on the other side of the boundary. With the proposed wave
optics system, we observe the Einstein ring as expect. The results reveal that
when the observer locates at the north pole, the Einstein ring and surrounding
concentric stripes always exist. While the observer departs away from the north
pole, the ring becomes into a luminosity-deformed ring or light spot. We also
investigate the effect of temperature $T$, chemical potential $u$ and
gravity-related parameters $c_0$ on the ring radius. We find the ring radius
increases with the decrease of the temperature, increase of the chemical
potential, and increase of the gravity-related parameters respectively. To
check the results in the framework of holography, we investigate the ingong
angle of photon at the photon ring via geometric optics and find it is
consistent with the angle of Einstein ring obtained via holography.
