The goal of this research is to identify and study the mental hygiene and its related factors (individual, family, organizational) in the Kerman special schools teachers. 266 teachers of the special schools of the cities of the province Kerman were chosen as the research sample. The necessary data were obtained by "questionnaire" which its validity and reliability were determined. The statistical analysis of the research findings (by Spearman coefficient test) Man-Whithey and Kruskal wallis tests showed that there was a positive and meaningful relationship between "Level of education", "service of record" "the number of the members of teacher's family", "income", "dwelling-place", "economic power", "acceptance of the teacher's job in their family", "leadership style", "suitable educational possibilities", "suitable educational space", "job satisfaction" with the mental hygiene of the teachers. The results of the research also showed that the Kerman special schools teachers enjoyed a "relatively desirable" mental hygiene.