The utility model discloses a fabric tensile strength test pre-tensioning clamp device, comprising a clamping component and a tension component, wherein the clamping component comprises a tension spring, a left clamping piece and a right clamping piece, a tension spring is disposed between the left clamping piece and the right clamping piece, and a left clamping tooth is disposed at an upper end of the left clamping piece, and a right clamping tooth被处置在右夹具的上端，牙齿和右下颌之间形成锯齿下巴。张力构件耦合到左夹具的下端和右夹紧块，张力构件包括张力调节杆，一个张力式钩子和一个张力块，张力式钩的上端连接到张力调节杆，并且张力块在紧张挂钩的下端连接。
与先前的ART相比，实用程序模型的预张紧夹具具有预张紧夹的灵活性，并且可以自由控制预张夹，并且在织物强度测试过程中，可以有效防止超薄织物的测试过程中的预张紧态。夹子引起的滑移现象。