Abstract: The present invention relates to an arrangement in a wood handling device, such a wood handling device being constituted at least by a working device (1) and a cutting device (7) connected thereto. The cutting device according to the arrangement comprises a body (8) which includes tree cutting means and means for arranging the cutting device in a working device provided in booms of a forestry machine. Such a working device, in turn, comprises a body (4) and a set of gripping members (2, 3) for gripping one or more tree trunks (5) simultaneously. This arrangement is characterized in that the cutting device is arranged in the working device by connecting means (6) enabling a mutual shift of the bodies of the working device and the cutting device substantially on a plane of motion of the tree trunk cutting means.