An intermediate transfer unit includes an intermediate transfer belt that is configured to be rotated; a belt support that supports the intermediate transfer belt; a housing that receives the belt support on which the intermediate transfer belt is mounted; and a belt protecting member that is provided on the belt support and is urged by elastic member so as to cover edge of the intermediate transfer belt in a width direction thereof, wherein the belt support is formed to be swingable with respect to the housing, end of the belt protecting members is positioned so as to cover the edge of the intermediate transfer belt in the width direction while the belt support is received in the housing, and the end of the belt protecting member is withdrawn to an outside of the belt support while the belt support is swung with respect to the housing.