The utility model discloses a buffer structure for spherical nucleus fuel element storage container relates to hazardous articles transportations and storage field, has solved the storage of scarce specially adapted for spherical nucleus fuel element, has put forward the high impact resistance performance, easy to operate's buffer structure's problem for the storage container again. The embodiment of the utility model provides a scheme does: with the supporting buffer structure who uses of spherical nucleus fuel element storage container, set up the inside buffering post group in storage container promptly, buffering post histotope comprises a plurality of root circle cylindricalitys buffering post in a section of thick bamboo tied in a bundle, both ends are covered and container bottom plate fixed connection with storage container respectively about the cylindrical buffering post, the section of thick bamboo cylindrical tied in a bundle of rule is put to component section of thick bamboo histotope tied in a bundle including a plurality of roots inside vessel shell. The embodiment of the utility model provides a be applicable to radioactive substance transportation and storage field.