The invention relates to an energy wood grapple to be mounted to the head of hydraulic knuckle booms supported on a work machine in order to thin and clear trees and bushes. The energy wood grapple includes a frame (1), at least one pair of grapples (2) arranged to be turned substantially horizontally against each other on the frame in order to grip the substantially vertical trees to be worked on, and, under the pair of grapples, a cutter (3) supported on the frame in order to cut the tree or trees held by the pair of grapples. According to the invention the energy wood grapple includes two cutters operating independently of each other, wherein a lower cutter (3) includes two elongated saw blades (6,7) with their planar surfaces disposed facing each other, both arranged to be moved in their longitudinal direction back and forth relative to the frame and in opposed directions at the same pace, and the long edges of the saw blades pointing in the same direction include opposingly cutting knife-type rows of blades (8,9), and wherein an upper cutter (4) is formed by a chain saw having a blade flange that turns relative to the frame (1) and a chain wrapped around it.
