To provide an occlusion plane analyzer easily drawing an occlusion plane and easily determining an occlusion plane analysis point.

The occlusion plane analyzer 5 includes: an analysis plate 7 composed of a magnetic material and held above a lower jaw model 2; a magnet 8 which can be attracted to the analysis plate 7 by magnetic force, and in which a circular support hole 15 passing through in the direction of attraction by the magnetic force is formed; and a Monson curve imparting implement 9 composed of a spherical body part 17 composed of the magnetic material, having a diameter larger than the inner diameter of the support hole 15 and attracted to the support hole 15, an extension part 18 extending from the spherical body part 17, and a spherical surface reproduction part 19 extending further from the distal end of the extension part 18 and drawing a circular arc concentric to the spherical body part 17.