PURPOSE: To provide a container for a photographic processing compsn. which makes the reduction of volume of the container possible after use and maintains the volume without changing by ordinary handling.

CONSTITUTION: Bellows parts 16 are provided with ribs 20 continuously in the height direction of a conainer body along the rugged surfaces of the parts. The prescribed or smaller force to shrink the bellows parts 16 is supported by the axial force of the ribs 20. Then, the bellows parts 16 do not shrink even if such force to press a mouth part 12 is inadvertently applied on the bellows parts 16 and, therefore, the liquid filled therein does not jump out of the mouth part 12. The bellows parts are ruptured in the parts of large frame parts 30 and small frame parts 32 when the bellows parts 16 are intentionally crushed by the prescribed or larger force. The volumetric reduction of the container 10 for the photographic processing compsn. is thus possible.