The utility model discloses a horizontal device of component post antidetonation experiment, the device include flange support and two sets of pull rod of three parallels, and every group pull rod is four. The flange support link to each other fixedly through four isometric pull rods, the flange support link to each other fixedly through four isometric pull rods. Fixed jack passes through transmission shaft power in the middle of the flange support to make whole device be in the atress from balanced state. The middle part of component post is connected through adjustable connector keysets and MTS actuator. The utility model has the advantages of: use the ball pivot to make the easily fixed adverse effect who brings by test piece machining error that reduces of test piece, the bias voltage of avoiding traditional dull and stereotyped hinge probably to produce, simple structure, convenient operation accounts for experimental space less and requires low test device to testing equipment.