The invention discloses a tripping traction device for a circuit breaker, and belongs to the technical field of low-voltage electrical apparatuses. The circuit breaker comprises a first electric magnet, a second electric magnet and an operating mechanism; the traction device comprises a supporting frame, a traction rod, a first cantilever, a second cantilever, a third cantilever, a first pin shaft, a second pin shaft, a first connecting piece, a second connecting piece and a third connecting piece; the third connecting piece is connected with the operating mechanism; the first electric magnet and the second electric magnet are arranged on two sides of the traction rod respectively; one end of the first connecting piece is connected with the first electric magnet, a first strip-shaped groove is formed at the other end of the first connecting piece, and the first pin shaft is arranged in the first strip-shaped groove to form a sliding fit; and one end of the second connecting piece is connected with the second electric magnet, a second strip-shaped groove is formed at the other end of the second connecting piece, and the second pin shaft is arranged in the second strip-shaped groove to form a sliding fit. The tripping traction device for the circuit breaker has the advantages that: the actuating force of the electric magnets can be effectively transmitted to the operating mechanism, and when one of the electric magnets transmits the force, an adverse effect cannot be caused to the other electric magnet under the condition that the two electric magnets exist.