The invention discloses a solder strip annealing device. The solder strip annealing device comprises an electrode A, an electrode B, a main transmission wheel roller, an auxiliary transmission wheel roller, a control system and a solder strip; the solder strip annealing device is characterized in that a wheel wound with the solder strip is installed on the auxiliary transmission wheel roller, thesolder strip is wound on the electrode A and the electrode B, and good electric contact is achieved; and the solder strip is then wound around a wire winding wheel of the main transmission wheel roller, and industrial electricity enters the control system to become needed low voltage high current to be sent to the electrode A and the electrode B. A plurality of strip winding wheels can be installed on the main transmission wheel roller and the auxiliary transmission wheel roller. Main bodies of the main transmission wheel roller and the auxiliary transmission wheel roller are made of copper; and the outer sides of the copper are sprayed with high-temperature-resistant and wear-resistant coating.