The invention provides a method for manufacturing an elastic porcelain super-inlay of a fiber post. The method comprises the following specific steps of: (1) carrying out digital scanning impression on a tooth cavity type prepared by cavity type preparation and post channel preparation; (2) directly inserting a fiber post into a prepared post channel, and carrying out digital scanning impression on the tooth cavity type inserted into the fiber post again; (3) according to the digital scanning impression in the step (1) and the step (2), designing an elastic porcelain super-inlay model containing pile holes through CAD and CAM technology treatment, and performing trimming and processing to obtain the elastic porcelain super-inlay with the post holes; and (4) passing the fiber post through a post hole of the elastic porcelain super-inlay, fixing the fiber post on the post hole through adhesive resin, and finally performing polishing. The super-inlay prepared by the method has good beauty, high compressive strength and good ductility, can reduce the abrasion to natural teeth of the jaw, ensures good edge adhesion through digital scanning impression and CAD and CAM manufacturing, has lower price than zirconium dioxide, and has a saving effect.