The utility model relates to a bridge bent cap or binder formwork support adjusting device. Adopt the steel pipe of two kinds of different diameters to make sand bucket and concrete bucket respectively, the sand bucket is placed as last support bucket and form strutting arrangement in the sand bucket as under bracing bucket, concrete bucket, and the sand bucket diameter is greater than concrete bucket diameter, carries out the elevation regulation through the sand volume of adjusting in the sand bucket. The utility model discloses a following advantage of holding regulator utensil: simple structure, the preparation of being convenient for, it is with low costs, light in weight, installation (demolising) is convenient, reliable and stable, safe risk is little.