Relationship between personality traits and productivity with emphasis on mediator role of emotionality in teaching of Tabriz Azad University faculty members. Among the factors that causes the increase of organizational performance and productivity is the personality of the People. Compromising and harmony between type of personality and type of environment would be more compatible with the profession, which in turn leads to positive organization performance.Emotionality also can reveal an important predictor for some organizational outcomes such as upgrade or reduce labor productivity. The purpose of this study was to examine the relationship between personality characteristics and productivity with emphasis on the mediator role of emotionality in faculty members teaching of Tabriz Azad University. This is a correlation study. The population included 504 members of Tabriz Azad University faculty members in 2016. The size of the sample was 272 person from Morgan; table. The method of sampling was stratified-random sampling. To measure the variables of study NEO personality questionnaires were used. Characteristics with 60 questions form, emotionality scale in Vilavisnesyo teaching, and Achiv productivity questionnaire. The Pearson correlation method and regression and the path analysis were used. The results showed that there are relationships between productivity and personality characteristics with compatibility, conscience, neuroticism, extraversion and agreeableness respectively with confidence level of 0.372, 0.412, 0.112, 0.371, 0.215. Personality characteristics with compatibility, conscience, neuroticism, extraversion and agreeableness respectively with confidence level of 0.271, 0.351, 0.412, 0.371 and 0.341 has relationship with emotionality in teaching. Also emotionality in teaching with 0.149 confidence level has relationship with productivity. The researcher concluded that productivity is affected by characteristics of personality, and emotionality in teaching can be increased or decreased productivity.