Recently, it has been a hot issue to discriminate disqualified teachers, under the public education system surrounded by the education-related stakeholders in a pluralistic society. The study was intended to analyze teachers' resistances of discriminating disqualified teachers, and to suggest policy directions for improving their discriminations. For attaining the purpose this study reviewed the related literature with the disqualified teacher from the various perspectives and found that we need to discriminate disqualified teachers through the establishment of a minimum standards for teachership. Derived from the review of the literature from teachers' resistances against educational changes, the scopes of analysis were composed of (1) cultural barrier, (2) social barrier, (3) organizational barrier, (4) psychological barrier. As a result of applying the barriers into the cases of discriminating disqualified teachers, the study suggested the following policy implications: (1) setting justifiable and objective criteria of discriminating disqualified teachers, (2) exploring rational approaches and methods to strengthen the positive sides of the discriminating system, and (3) Using different policy mechanisms in the process of its formation and implementation.