The present invention discloses a bending action recognition device and a flexible display device, the bending action recognition device comprises: a first electrode, a second electrode, a current detecting unit and a plurality of electrical conductors, a first voltage is applied on the first electrode, a second voltage is applied on the second electrode, first ends of all the electrical conductors are connected to the first electrode, different electrical conductors are located at different positions on the flexible substrate, and different electrical conductors have different resistances; when the flexible substrate is bent backward, at least one electrical conductor is electrically connected to the second electrode, and a first current is generated on the first electrode and the second electrode, and when different electrical conductors are electrically connected to the second electrode, the first current has different current values.