Crack measuring device

The utility model relates to a crack measuring device which comprises a mounting plate, a plurality of universal wheels are arranged below the mounting plate, a clamping seat is arranged above the mounting plate, a push rod is connected in the clamping seat, a handle is arranged at the top end of the push rod, a display device is arranged on one side of the handle, a moving rod is connected in the mounting plate in an embedded mode, and the moving rod is connected with the clamping seat. One end of the moving rod is fixedly connected with a vertical plate, one side of the vertical plate is provided with a roller, and the bottom of the vertical plate is fixedly connected with a protective plate. According to the utility model, the push rod and the mounting plate are arranged, the push rod can drive the mounting plate to roll on the ground, and the handle is high, so that the laser range finder can be moved into the crack for measurement when the crack is measured, and the measured data can be directly observed