A method for producing a pressure-sensitive adhesive tape package 10, the pressure-sensitive adhesive tape package 10 accommodating a pressure-sensitive adhesive tape 14 having a support 18 and an adhesive layer 12 provided on one surface of the support 18, the pressure-sensitive adhesive tape package 10 comprising a release sheet 16 to which the adhesive layer 12 of the adhesive tape 14 is releasably attached. The method comprises feeding a release sheet base material 116 serving as the release sheet 16 to a predetermined feed position, sequentially feeding a plurality of adhesive tapes in a row to the release sheet base material 116 at the feed position, and bonding the adhesive tapes to the release sheet base material 116 such that predetermined spaces are formed between the adhesive tapes adjacent in anterior and posterior directions of the feeding direction, folding the release sheet base material 116 with the adhesive tape 14 in two, sealing a predetermined portion of the release sheet base material 116 to form the two-folded release sheet base material 116 including a plurality of accommodating spaces each of which accommodates one adhesive tape 14, temporarily attaching a part of each adhesive tape 14 to the release sheet base material 116, and cutting the release sheet base material 116 to form the pressure-sensitive adhesive tape package 10
