The utility model discloses a probe bracket that steel sheet was detected a flaw mainly is applied to steel sheet inspection equipment technical field. This probe bracket includes fixed bolster, telescopic link, activity detection arm, is used for the probe of centre gripping probe to press from both sides, telescopic link one end with fixed bolster upper portion is articulated, the telescopic link other end with it is articulated that bizhong portion is surveyed in the activity, the activity survey arm one end with the fixed bolster lower part is articulated, the other end that the arm was surveyed in the activity has the structure that fixed probe pressed from both sides. This mechanism structure is simple, the dead weight is light and the cost is low, the motion is nimble, installation maintenance convenient to use, and the impact force of probe whereabouts is effectively alleviated to the good reliability, and the excessive vibrations of the mechanism that prevents to detect a flaw are favorable to reducing the steel sheet to the impact of probe, reduce the frictional force of the process of detecting a flaw, reduce equipment trouble and rate, guarantee inspection quality and efficiency, the additional income.