A deaerator-carrying compression bag (1) capable of deaerating even when a deaerating pump nozzle is not inserted deep into a bag body, comprising a resin bag body (10) formed at one edge of the outer peripheral edge (1) thereof with an opening (11A) for storing an article to be stored (16), a fastener (12) provided on the inner surface of the bag body (10) and acting as an occluding tool for blocking the opening (11A), and a resin deaerator (13) for exhausting the air inside the bag body (10), wherein the deaerator (13) is welded to the bag body (10) at the base end (13A) of the deaerator (13), and the deaerator (13) has a back-flow preventing means (15) for preventing the back-flow of air into the bag body (10).