Abstract: The active underpinning technical scheme of shield tunnel under-passing statically indeterminate bridge structure is introduced. The lifting force control method during active underpinning is expounded. In terms of specific projects, the measure methods of pre-supporting range and lifting force are explained, especially emphasizing on the confirmation of lifting force. Lifting force measuring results show that in the long-term use of statically indeterminate structural bridge, the force transmitted from the bridge deck to each pier is inconsistent with the theoretical calculation value, and the local error is more than 30%, while controlling active underpinning of the bridge with field test lifting force can avoid theoretical error, preventing the occurrence of cracks and deformation on bridge caused by short-term internal force redistribution during the replacement process. Monitoring results from practical projects has verified the feasibility and rationality of the lifting force control method.