The utility model relates to a stretch -draw instrument for geogrid's stretch -draw in the construction, a serial communication port, stretch -draw instrument has horizontal pole and a plurality of rake teeth, the rake teeth is connected on the horizontal pole. The utility model discloses a stretch -draw instrument for the manpower has been saved in geogrid's stretch -draw in the construction, has improved construction speed, thereby has effectively improved work efficiency, has practiced thrift the cost.