To provide a partition having a folding shelf capable of being used as a shelf, if necessary, and being stored as a part of the partition when it is not used.

Rails 6 including top, bottom and lock rails and stiles 7 are framed to form a rectangular frame 5 having a depth adjusted to an aspect width of a partition and, at the same time, the rear end of a shelf panel 8 is connected to the rails 6 (6b) with a hinge 12 to form a shelf unit B so as to fold the shelf panel 8 in a raisable manner to store. The shelf unit B is fitted and fixed to a proper parting panel loading space surrounded by a structural material of the partition to constitute the partition having a folding shelf.