Objective:To explor middle school teachers' vocational stress on their conduct problem influence.Methods:The vocational tense questionnaire and the conduct problem questionnaire were administered to 235 middle school teachers in five cities of Zhejiang province.Results:①The middle school teachers' general vocational stress level was high;the difference between the city,and countriside teachers vocational stress is remarkable.②Management and system,students and responsibilities,social support and the environment,the ability to adapt,and organization and climate had obvious,impact on the conduct problems,while the influence of working load on conduct problems had not reached prominent level.③The factors of middle school teachers' vocational stress influencing conduct problems in turn are:social support and the environment,students and responsibilities,organization and climate,management and system,and the ability to adapt.Conclusion:Besides the working load factor,the middle school teachers vocational stress has obvious influence on its conduct problems;in expediting the emergence of the conduct problems,the teacher's external stress factors should be higher than the internal stress factors.