The high precision automatic leveling level adopts the built-in micrometer plate structure and the gear direct meshing micrometer structure, which completely eliminates the row error existing in the traditional micrometer plate structure. The reading is directly displayed on the display screen, eliminating the reading error existing in the micrometer reading. The instrument adopts the fully sealed design, which can effectively prevent dust and water, and the sealing grade can reach IP55; The magnification and objective aperture are larger, and the observation target is clearer; the compensator is fixed with a new patented technology, which improves the reliability and stability of the instrument. The appearance of the instrument is balanced and coordinated, the placement is stable, the accuracy of the level is higher, and the centering performance is better.