Provided is an optical tomographic imaging apparatus including: a unit for creating a measuring beam and a reference beam from beam of a light source, and generating interference light by combining a return beam resulting from the measuring beam and the reference beam; a unit for detecting the interference light to generate a detection signal; a unit for forming an image of the object based on the detection signal; a unit for designating a specific area in the image; a unit for setting a calculation index and a determination reference range used for determining image quality of the specific area; and a unit for applying calculation processing to a luminance value of the specific area based on the calculation index, determining whether a calculated value obtained as a result of the calculation processing is within the determination reference range, and outputting a detection result.