PURPOSE: A numeric data updating system in which numeric data is updated on a real time basis is provided to always maintain a vertical erupted state based on a virtual horizontal surface, thereby always obtaining an accurate leveling value. CONSTITUTION: A numeric data updating system in which numeric data is updated on a real time basis comprises a leveling rod(100), a leveler, a data processing unit, and a storing unit. The leveling rod comprises a base(110), a plurality of fixing posts(130), a plurality of movable posts(140), a leveling rod supporting pipe(150), a marking post(160), a convex lens cover(170), a plurality of LEDs(180), a battery, and a light switch. A horizontal sensor(120) is installed on a one side of the upper part of the base. The fixing post is joined to the lower part of the base with a screw to be detachable and formed into a cylindrical shape and forms a screw-thread in a central inner portion. The movable post is connected to the central in a central inner portion of the fixing post with the screw. The whole length of the movable post and fixing post can be adjusted by controlling a rotating direction and the number of the rotation of the screw joined portion with respect to the fixing post. A fence of a rectangular container shape is protruded in a central portion of the top surface of the base in a perpendicular direction.
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