Device for positioning an implant for intervertebral fusion, comprising: - a handle; - a rod protruding from said handle along a main direction of extension of the device up to its free end and comprising a pair of prongs, parallel and adjacent to one another, elastically movable towards and away from each other; - coupling means for coupling with an implant for intervertebral fusion operatively active at said free end comprising: an axial retention assembly provided with a gripper arranged at said free end of the rod and selectively operable between a clamping and a releasing configuration, and an anti-rotational constraint assembly selectively movable between a locking position, in which it is arranged around said axial retention assembly and abuts said implant to prevent its rotation, and a disengagement position, in which it leaves the implant free to rotate in said gripper wherein said axial retention assembly and said anti-rotational constraint assembly are structurally different and complementary, wherein said axial retention assembly comprises a manoeuvring element associated with the gripper, configured to toggle it between the clamping configuration and the releasing configuration when operated by a user and comprising a tubular sleeve partially containing and slidably associated with said prongs, characterized in that said anti-rotational constraint assembly comprises at least an abutment element slidably associated with said rod and selectively movable between a position next to the handle and a position distal to the handle, corresponding respectively to the position of disengagement and the locking position of the anti-rotational constraint assembly, and in that said abutment element comprises a tubular body fitted on said sleeve of the retaining assembly and sliding with respect thereto between said distal and proximal positions. - a handle; - a rod protruding from said handle along a main direction of extension of the device up to its free end and comprising a pair of prongs, parallel and adjacent to one another, elastically movable towards and away from each other; - coupling means for coupling with an implant for intervertebral fusion operatively active at said free end comprising: an axial retention assembly provided with a gripper arranged at said free end of the rod and selectively operable between a clamping and a releasing configuration, and an anti-rotational constraint assembly selectively movable between a locking position, in which it is arranged around said axial retention assembly and abuts said implant to prevent its rotation, and a disengagement position, in which it leaves the implant free to rotate in said gripper an axial retention assembly provided with a gripper arranged at said free end of the rod and selectively operable between a clamping and a releasing configuration, and an anti-rotational constraint assembly selectively movable between a locking position, in which it is arranged around said axial retention assembly and abuts said implant to prevent its rotation, and a disengagement position, in which it leaves the implant free to rotate in said gripper wherein said axial retention assembly and said anti-rotational constraint assembly are structurally different and complementary, wherein said axial retention assembly comprises a manoeuvring element associated with the gripper, configured to toggle it between the clamping configuration and the releasing configuration when operated by a user and comprising a tubular sleeve partially containing and slidably associated with said prongs, characterized in that said anti-rotational constraint assembly comprises at least an abutment element slidably associated with said rod and selectively movable between a position next to the handle and a position distal to the handle, corresponding respectively to the position of disengagement and the locking position of the anti-rotational constraint assembly, and in that said abutment element comprises a tubular body fitted on said sleeve of the retaining assembly and sliding with respect thereto between said distal and proximal positions.