An eye tracking apparatus and an image capture module thereof for capturing an iris image are provided. The image capture module includes a carrier, a light source and an image sensing unit. The light source and the image sensing unit are both disposed on the carrier and fastened ahead of the eye by carrier. The light source emits a light beam to the eye, and the image sensing unit receives the light beam reflected from the eye to capture the iris image. The light source and the image sensing unit are arranged at two different sides of a longitudinal reference plane.本創作一實施例提出一種影像擷取模組，用以擷取眼睛的虹膜影像。影像擷取模組包括載架、光源及影像感測單元。光源設置於載架上，用以發射一光束至眼睛，影像感測單元設置於載架上，並利用從眼睛所反射的光束來擷取虹膜影像，其中載架用於將影像感測單元與光源固定在眼睛的前方，而影像感測單元與光源分別設置於通過眼睛之中心的縱向基準面的不同側。
