It is a common knowledge that teachers have an important role in inculcating values and norms which may affect political thinking and attitudes of the youth. It is, therefore, interesting to try to assess their political attitudes particularly those concerning democratic and undemocratic norms. This thesis is a result of a survey research in which 419 teachers were chosen from 640 sampling units covering 16 public secondary schools and 16 private secondary schools. A questionnaire consisting of 68 items was used, each item was tested by internal consistency test. All items were designed on the agree – disagree scale. There were two types of variables which the researcher looked into. Democratic political culture and authoritarian political culture were taken as dependent variables while categories of school, levels of education and sexes were treated as independent variables. It is found that the majority of Thai teachers have mixed political culture – both democratic and authoritarian. The numbers of teachers in public secondary schools and their counterparts in private secondary schools who have this mixed political culture are almost equal. The findings indicate that levels of education are of little importance to democratic and authoritarian political culture. Although sexes are a little important factor to democratic political culture, but they are not important to authoritarian political culture.