Teacher's job stress is becoming an extremely important concern in school organization. It is generally associated with several vital individual physiological, and behavioral symptoms. There are at least two reasons for studying teacher's job stress. First, mismanaged and unprevented teacher's job stress can produce the damage done to the school's human resources due to strain and distress, such as low productivity or poor performance. Second, When teacher's job stress is properly managed and prevented, It can lead to improved individual health, job satisfaction, school organizational health and school organizational effectiveness. My study on this topic suggests that there is a relationship between teacher's stress and their perceptions of the school organizational environment. But these teacher job stress could arise either because the school organizational environment is a source of stress or because individual teachers react to that environment differently. In other words, organizational levels of teacher stress are related to organizational sources of stress and organizational stressors arise from the conditions of work. Environmental stressors, therefore, arising from oranizational environment were seen to affect the stress level in the school as a whole. By contrast, individual level of teacher stress in a given school may vary directly with their perceptions and attitudes of organizational source of stress. These my notions about stress are generally being a type of Person - Environment fit. emphasizes the importance of maintaining optinum level of stress to maximize teacher performance and think that the necessity of preventive management strategy must be emphasized on a model for action as two point of views(Person-Environment). Thus, I focused my attention on the identification of job stressors, its effects and develop preventive management strategies by which teachers can most effectively manage, prevent, reduce their stress in order to facilitate a greater effectiveness and health in school organization level as well as in individual level. In conclusion, to maximize effectiveness and health in school organization, to buffer teacher's job stress, school administrator must build preventive management strategy and provide teachers with guide for action of it.