Antimagnetic induction device for door lock and door lock with antimagnetic induction device

The invention relates to an antimagnetic induction device for a door lock and the door lock with the antimagnetic induction device. The antimagnetic induction device for the door lock comprises a telescopic rod, wherein the telescopic rod consists of a magnetic conductive material, is positioned in the circumferential direction and the radial direction and is telescopic in the axial direction; the antimagnetic induction device further comprises a limiting piece and a resetting mechanism; the limiting piece consists of a magnetic conductive material and is positioned in the axial direction of the telescopic rod; a limiting part matched with the limiting piece is arranged on the telescopic rod; the limiting piece has a limiting position matched with the limiting part of the telescopic rod to axially position the telescopic rod and a releasing position separated from the limiting part of the telescopic rod to enable the telescopic rod to axially stretch; the resetting mechanism applies acting force on the limiting piece from the limiting position to the releasing position. According to the technical scheme, the antimagnetic induction device has the effect of improving the safety.