The utility model relates to an incline is anchor clamps for testing machine for carry out the incline experiment to steel strand wires, a serial communication port, include: the holder, it is whole to be the tube -shape and falld into at least two parts along axial direction, and the internal surface of holder is circular and size and the size phase -match of the steel strand wires fixed, and the connecting piece, the internal surface of connecting piece cooperatees with the surface of holder to can install the holder on the incline testing machine with the help of this connecting piece, wherein holder and connecting piece pass through the connection of block mechanism. The utility model discloses an incline is anchor clamps for testing machine can solve effectively when operation the steel strand wires sample skid, the problem of the easy departure of anchor clamps part and centre gripping unstability etc.