Abstract: The present invention relates to a cascade type interferometric nonlinear optical imaging apparatus, and the imaging apparatus comprises a light source for generating Stokes beam having a desired frequency band and a pump beam for exciting medium molecules in a sample with the Stokes beam; a phase shifting unit for shifting a phase of the beams passing through a standard sample and a phase of an anti-Stokes beam generated from the standard sample on the same path, wherein the Stokes beam and the pump beam generated from the light source pass through the standard sample at the same time to generate the anti-Stokes beam; a scanning unit for scanning the beam phase-shifted by the phase shifting unit onto a space of a test sample; and a detecting unit for detecting optical interference due to a phase difference between a light signal generated by passing the test sample and a light signal generated by passing the standard sample.