The invention belongs to the technical field of displaying, and particularly relates to an anti-dazzle device and a rear view mirror. The anti-dazzle device comprises a first electrode, a second electrode, an anti-dazzle layer and a reflection layer, wherein the first electrode and the second electrode are arranged oppositely, the anti-dazzle layer is arranged between the first electrode and the second electrode, and the reflection layer is arranged outside the first electrode or the second electrode. The anti-dazzle layer comprises a plurality of deflection molecules which can be switched between orderly deflection and disordered distribution under different voltage differences between the first electrode and the second electrode. According to the anti-dazzle device, the anti-dazzle mode can be automatically switched by utilizing the characteristics that the bistable liquid crystal molecules or the multi-stable liquid crystal molecules can deflect orderly and be distributed in a mess in a power-on state and a power-off state, and the anti-dazzle device is especially suitable for being applied to anti-dazzle of the rear view mirror.