A sensor using a load cell, a support frame for a walking practice robot and a pulling apparatus for the walking practice robot using the same are provided to confirm the towing amount in real time by displaying the current change amount with a load cell indigator. A sensor(500) using a load cell includes a base, a load transfer unit, the load cell, and a connection protrusion. The base includes a contact surface fixed on the structure. The load transfer unit comprises a hinge fixing part and a load transfer part. The hinge fixing part is combined on the base to a horizontal direction. The load transfer unit is rotated in the center of the hinge fixing part. The load cell is fixed on the bottom of the base. The connection protrusion is protruded to form a connection part on a predetermined location.
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