To provide a collapsible shower support apparatus for supporting a person with disability.

This collapsible shower support apparatus includes (i) a pair of slender frame members mutually connected by a hinge mechanism, that is, the respective slender frame members rotatable around the hinge mechanism between a folded-up position and an assembled position, and in the assembled position, an upper surface of the respective slender frame members is arranged in the same plane, and among the slender frame members, at least one extends in a space part of a shower device, (ii) a platform slidably installed on the upper surface of the slender frame members, and slidable longitudinally along the slender frame members, and (iii) the person with disability support means installed on an upper surface of the platform, and movable to the lowest position in nonuse from an upright position in use.