The invention discloses a method for testing high temperature resistance of a magnetic head. The magnetic head comprises an air bearing surface and two shielding layers. The method includes: applying a plurality of first magnetic fields with different intensities to the magnetic head in the first direction and measuring first output parameter curves; applying a plurality of second magnetic fields with different intensities to the magnetic head in the second direction and measuring second output parameter curves; and judging whether changes exceeding an admissible value exist in the first output parameter curves and the second output parameter curves or not so as to screen defective magnetic heads, wherein the first direction is perpendicular to the air bearing surface of the magnetic head, the second direction penetrates through the air bearing surface by an angle, and the absolute value of the angle is an acute angle value. The defective magnetic heads with poor high temperature resistance can be highly precisely screened without being heated.