The utility model discloses a magnetic sensor packaging structure with hysteresis lag coil, including substrate, sensor section, the stagnant coil of the spiral shell rotating magnetic field of setting on the substrate, lead bonding pad, the sensor bridge arm constitute by magneto resistor sensing element, the deposit is gone up in the sensor section has the sensor bridge arm, sensor bridge arm electricity connects into the magnetoresistive sensor electric bridge, the magnetoresistive sensor electric bridge set up to be in on the hysteresis lag coil, the magnetic field that the stagnant coil of spiral shell rotating magnetic field produced and the sensitive axle collineation of sensor electric bridge, the magnetoresistive sensor bridge circuit encapsulation is in on the substrate. The utility model discloses a setting up the stagnant coil of spiral shell rotating magnetic field, can bearing bigger electric current, the resistance value is littleer. The utility model discloses eliminated by the sensor in produced hysteresis lag hysteresis cycle, just packaging structure's preparation simple process, the cost of manufacture is low.