The invention relates to a method for structural strength worm and gear type reinforcement of shield tunnel linear segment pipe rings. An adopted device comprises a reinforcing pull rod 2, a fixed end 1 and a loading end 3, wherein the fixed end 1 and the loading end 3 are disposed at the two ends of the reinforcing pull rod 2. The loading end 3 comprises a fixed screw 31, a detachable rotatable wrench 32, a loading torque transformation box 33, a torque transformation box fixing bolt 34 and a fixed end table 35. The method comprises the steps of using the wrench to clamp a hexagon nut of a fixed screw 11 at the fixed end and screwing the hexagon nut into a lifting hole of a shield segment; screwing the fixed screw 31 at the loading end into a lifting hole of an adjacent segment; mounting the fixed end table 35 and a rotary end table 12 at the tops of the two fixed screws respectively; after the loading torque transformation box 33 is mounted, inserting the reinforcing pull rod in the position of the rotary end table 12, inserting a screw rod part in the fixed end table 35, and mounting the detachable rotatable wrench 32, so that the structural strength between the pipe rings can be reinforced.