The test data processing apparatus of the present invention is a test data processing apparatus for processing test data obtained by testing defects of a sheet-shaped product having at least an optical film which is a member of an optical displaying apparatus, comprising a defect information preparing section, wherein, on the basis of surface defect test data relating to a surface defect and bright point test data relating to a bright point obtained when the optical film or a laminate body containing the optical film is regarded as an object of testing, in a case that a position of the surface defect and a position of the bright point are identical, the surface defect and the bright point located at the identical position are not regarded as a defect for processing by the defect information preparing section.