A magnetic image sensor and an authentic identification method

The invention provides a magnetic image sensor and an authentic identification method. The magnetic image sensor comprises a magnetic sensor chip. The characteristics are that: the magnetic sensor chip comprises a first magnetic sensitive dot matrix and a second magnetic sensitive unit dot matrix; an included angle theta between the first magnetic sensitive dot matrix and the second magnetic sensitive unit dot matrix is in the range of 0magnetic sensitive dot matrix and the second magnetic sensitive unit dot matrix respectively comprise N magnetic sensitive units and M magnetic sensitive units; and the magnetic sensitive units are Wheatstone bridge circuits made of magnetic sensitive films, wherein the N and the M are integers greater or equal to 1. The magnetic image sensor can carry out magnetic imaging on magnetic stripes or magnetic dots in a two dimensional plane, so that demands for two dimension authentic identification can be realized.