Disclosed is a novel adhesive tape packaging bag which can be easily opened and with which the adhesive tape can be easily affixed. The adhesive tape packaging bag (10) contains an adhesive tape (14) comprising: a support (18)； and an adhesive layer (12) provided on one surface of the support (18). The adhesive tape packaging bag (10) comprises a release sheet (16) that is detachably attached to the adhesive layer (12). The release sheet (16) is folded with the adhesive tape (14), and the adhesive tape (14) is sealed inside the folded release tape (16). To ensure that a half of the adhesive layer (12) of the adhesive tape (14) is exposed when the release tape (16) is opened, a part of the half is temporarily fastened by a plurality of temporary fasteners (50-54) arranged at spaced intervals.
