1. An optical coherence tomographic imaging device dividing a light from a light source into a measuring beam and a reference beam, guiding the measuring beam to an examined object and guiding the reference beam to a reference mirror, and imaging a tomographic image of the examined object by using a return beam by the measuring beam which is reflected or scattered by the examined object, and the reference beam reflected by the reference mirror, comprising: an observation unit observing a state of irradiating the examined object with the measuring beam, and imaging a state of the measuring beam being incident on the examined object as an observation image; a recording unit recording the observation image and the tomographic image by linking the observation image and the tomographic image with each other; and an evaluating unit evaluating the tomographic image which is linked with the observation image based on the observation image imaged in the observation unit.