A medical pressure-sensitive adhesive tape according to an embodiment of the present invention includes, a film base materiala first pressure-sensitive adhesive layer anda release liner releasably laminated to cover the first pressure-sensitive adhesive layer in the stated order,wherein:the release liner is divided into a first divided piece and a second divided piecethe first divided piece is placed at a widthwise-direction end on one side of the first pressure-sensitive adhesive layer to cover part of the first pressure-sensitive adhesive layerthe second divided piece is placed to cover a portion of the first pressure-sensitive adhesive layer that is not covered with the first divided piece andthe second divided piece has a folding portion extending toward a widthwise-direction end.
