The present invention provides an inspection method and device for a display panel, which may quickly and correctly inspecting display unevenness of a display panel. The method and device use a pick-up member having a lens system and a pick-up element to pick up displayed image, and inspect the display unevenness of the display panel according to the picked up image. The inspection device comprises a focusing member for focusing relative to the display panel of the pick-up member; a dispersal member for dispersing light of the image by adjusting distance between the lens system and the pick-up element, thereby restraining Moire fringe generated when picking-up the displayed image on the display panel. A light filter installation section for installing optical light filter is provided between the lens system and the pick-up element.