To provide a blanket cylinder almost free from vibration and noise.
A storage groove 19 is formed on the outer periphery of a cylinder 11. In addition, a base plate 13 is mounted on one of the faces of a rubber blanket 12 to be taken up on the outer periphery of the cylinder 11, and a base plate 13 and the rubber blanket 12 are equalized in length to the length of the circumferential direction of the cylinder 11. Further, the angular bars 14 with a tapered face 15 are installed on both ends of the base plate 13. The base plate 13 is taken up around the outer periphery of the cylinder 11, and the pair of angular bards 14 inserted into the storage groove 19 are sandwiched from both sides between the fitting face 25 of a tightening member 22 built into the storage groove 19 and a fitting face 20 formed on one of lateral faces of the storage groove 19 to fix the rubber blanket 12.