To provide a portable case capable of storing a stamp and a stamp base.

This case is provided with a stamp base 3, and a storing case part 10 containing a first chamber storing a rubber-made stamp and a second chamber storing the stamp base 3. Preferably, the case part 10 has a bottom part 22 surrounding the second chamber and first and second heads 20, 21 turnably connected to the bottom part 22 through a hinge 22, respectively. The first and second chambers are partitioned by the bottom surfaces of the first and second heads 20, 21 separated from each other at the time of turning. The areas of the bottom suraces thereof are different. Accordingly, the rubber stamp and the stamp base are made portable in one body.