The utility model discloses a balancing unit of eccentric case roof beam of jacking platform, jacking platform include case roof beam, nowel roof beam and eccentric settings in go up the case roof beam with hydro -cylinder between the nowel roof beam, balancing unit includes: the pulley, set up in go up on the case roof beam for the opposite side of the eccentric position of hydro -cylinder, smooth locating the stay cord of pulley, the first end rigid coupling of stay cord in the nowel roof beam, the second end of stay cord hangs and is equipped with the counter weight. The utility model discloses balancing unit of eccentric case roof beam of jacking platform is through setting up the counter weight for the opposite side of the eccentric position of hydro -cylinder on the jacking platform for the weight of jacking platform both sides reaches the influence that the balanced peaceful platform of wobbler action opposite vertex that causes with the hydro -cylinder of eliminating eccentric settings brought, has improved the reliability that the top module system was all used, guarantees safe construction.