The stereo micrography and three-dimensional (3D) measurement methods with super-large depth of field based on ultra-short depth of field microscopic imaging techniques are systematically summarized. The comparison is conducted aiming at the typical focus evaluation functions, focus search strategies, image sequence fusion and 3D reconstruction methods in 3D measurement methods with focus variation microscopic imaging. Some experimental verifications are also implemented. Research results are of reference to implementing 3D imaging with focus variation and measurement methods.