The invention provides an light wave interference means and a measuring method of light wave interference, comprising: a mechanism whole center site based on a first interference fringe picture special detected lens (1) of reflected light of the detected lens (1), a mechanism for adjusting in parallel manner of each optical axis of the detected lens (1) and reference spherical reflector (7), a mechanism for adjusting the relative position of the detected lens (1) and reference spherical reflector (7), a mechanism for adjusting the relative position of the detected lens (1) and reference spherical reflector (7) based on a second interference fringe picture on the bisis of penetrating light of lens part (2). Therefore, for detected lens marked by light generated by the reflected light belowdetection from surface of the lens part, the deviate of the optical axis of the detected lens and the optical axis of reference sphere is automatically adjusted at high accuracy, therefore a stable detection result can be obtained.