The present invention relates to an ampoule for implant storage and, more particularly, to an ampoule for implant storage with a function of bidirectional humidity maintenance that can suppress excessive moisture supply from a hydrophilic carrier in the ampoule to the implant surface, thereby solving the problem of the coating solution coming off due to external impacts. The ampoule for implant storage with a function of bidirectional humidity maintenance according to the present invention includes an ampoule container and a separator, which is accommodated in the ampoule container. The separator separates the inside of the ampoule container into a first space and a second space and has at least one through hole that allows moisture to move between the first and second spaces. An implant is accommodated in the first space and has a hydrophilic coating layer formed on at least a portion of the surface thereof. A hydrophilic carrier is accommodated in the second space and supplies moisture to the hydrophilic coating layer formed on the implant surface. Since the hydrophilic coating layer on the implant surface and the hydrophilic carrier contain one or more organic zwitterionic buffering materials having a sulfonic acid group, a moisture balance is maintained therebetween.