The present invention provides a detector for medical diagnosis. The detector for diagnosis includes a photosensitive element, an X-beam stopping element, a supporting board, and a conductive liner. The photosensitive element is used for sensing an X-beam. The X-beam stopping element is used for stopping the X-beam from penetrating said photosensitive element. The supporting board is provided below the X-beam stopping element to be used for supporting said photosensitive element. The conductive liner is provided between said photosensitive element and said supporting board to fit with said photosensitive element.
