The invention provides an eyelid detection apparatus that can detect eyelid rightly in short time. A vidicon (10) shoots object face, CUP (24) in a computer (14) obtains a moving image, and stories the image into an image memorizer (22). CPU (24) extracts edge line pair of candidate combination of an upper eyelid and a down eyelid as object. CUP (24) calculates evaluation value of left and right ends of the edge line pair including at least one of eye tail part and head part. CPU (24) detects a position of an eyelid of the subject on the basis of the parameter calculated by the parameter calculating apparatus.