To make moisture content in dry cleaning liquid hardly be excessive even when the pretreatment is sufficiently preformed to remove well water soluble dirt from washing, by equipping a water absorptive layer on the inner face of a net bag made of synthetic fiber with a closable opening part.

This washing storage bag 10 for dry cleaning comprises a rectangular net bag 12 consisting of synthetic fiber such as polyester, etc., and provided with a water absorptive layer 14 (14a,...14d) consisting of rectangular towel cloth sewn to the inner face of the net bag 12. An opening part 16, which is opened/closed by a tool 18 such as a fastener is equipped on one end part of the net bag 12. When a water absorptive layer 14 is equipped on the inner face of the net bag 12 like this, moisture in the dry cleaning liquid can be absorbed well by the water absorptive layer 14. Thus, even when pretreatment is sufficiently performed, the moisture content in dry cleaning liquid is suppressed to be excessive to enable to secure good cleaning effect.