The utility model relates to an experiment anchor clamps suitable for needle probe acoustic emission location, its characterized in that should test anchor clamps and include a fixed frame, a plurality of spring and a plurality of holder, fixed frame includes an outer ring frame frame, an interior ring frame frame, a plurality of both ends open -ended connecting pipe and a plurality of bracing piece, and outer ring frame frame includes the two -layer above outer loop that longitudinal separation set up, adoption bracing piece vertical fixing between two adjacent outer loops, and even interval sets up a plurality of first through -holes that are used for placing the needle probe on each outer loop, correspond the position and the quantity of outer loop, radially fixed through the connecting pipe between the three -layer inner ring that interior ring frame frame set up including longitudinal separation, each inner ring and corresponding each outer loop, each connecting pipe all feeds through with outer loop and inner ring junction and sets up a screw hole, the position and the quantity of corresponding first through -hole, on each inner ring also corresponding setting be used for placing the second through -hole of needle probe, set up a plurality of springs between each outer loop and the corresponding inner ring, the one end and the outer loop contact of each spring, the holder is established on the other end top of each spring.