Examinations was the essential factor in education, the method to evaluate products of education, and the main way to choose talented and righteous people in most epoch. Study and exams of confucianism in Le-So period growed brillianly, which was attached special importance to when feudal government had established administrative officialdom system and chosen the officials base on exams. But, step by step, it was arised the other negative corollary, that was created the amorous psychology in study and exam to get honours, position and benefit in society. By the time of Le -Trinh reign, the exams of confucianism was exposed many limit, that caused more and more negative in examination.