PROBLEM TO BE SOLVED: To provide a seed storage medium facilitating germination of seeds with few germination failures in the seed storage medium for storing seeds of a plant or the like in a base material.SOLUTION: The seed storage medium 1 includes the base material 2, a seed storage part having a low water absorbing layer or a water non-absorbing layer 7 on one surface of the base material 2 and having an opening in at least the other surface of the base material to arrange the seeds 5, and a cover film 6 provided on the other surface of the base material 2 to cover the opening of the seed storage part.COPYRIGHT: (C)2013,JPO&INPIT【課題】植物等の種子を基材に収納してなる種子収納媒体において、種子の発芽がしやすく、発芽不良の少ない種子収納媒体を提供する。【解決手段】基材2と、基材2の一方の面に低吸水層又は非吸水層7を有し、少なくとも基材の他方の面に開口を有し種子5が配置されている種子収納部とを備え、基材2の他方の面に種子収納部の開口を覆うカバーフィルム6と、を具備する種子収納媒体1とすることができる。【選択図】図1