The reason for exemption from the defense of educational testing ability is that the academic leaders and teaching experts in provinces and cities who have already served can be exempted from the defense of educational testing ability. According to the relevant information in the Notice of the State Education Bureau on Inquiring about the Implementation Plan for Deepening the Reform of the Professional Title System of Primary and Secondary School Teachers, the exemption condition for the defense of the education and teaching ability test is that the academic leaders and teaching experts in the provinces and cities who have already served can be exempted from the defense of the education and teaching ability test.