The invention relates to a spine acantha strutting device, expecially a spine acantha strutting device, applied between the adjacent spine acantha, which pulls off the adjacent spine acantha using a plurality of revolving connected strutting pieces to relatively revolve to augment the inclination. A spine acantha strutting device is characterized by having a plurality of strutting pieces, whereinthe strutting pieces includes an opening joint end and a connecting end, and the strutting pieces face to face pairwise to make the connecting end to form an included angle in a movable connection. Each opening is contacted with a spine acantha and relatively resolves to level off to a straight line, to enlarge the vertebra clearance of the spine.