Nowadays, teachers are more exposed to several occupational stress factors, which if persistent may lead to Burnout Syndrome , a psychosocial phenomenon constituted by three dimensions: emotional exhaustion, depersonalization and reduced professional achievement. The aim of this study was to verify the existence of association among the Burnout Syndrome dimensions and demographic, labor and psychosocial variables in a sample of 34 preschool teachers in the city of Porto Alegre, Brazil. The MBI – Maslach Burnout Inventory – was used along with a questionnaire to assess other socio- -demographic and labor variables. The results revealed low rates of the emotional exhaustion and depersonalization dimensions, and a high rate of Professional Achievement. As for demographic variables, only "having a partner" associated to the emotional exhaustion dimension, in which the teachers who have partners presented a higher mean. Regarding labor and psychosocial variables, results obtained using Pearson’s correlation and the Student's t - test showed that as working hours, number of students who are taken care of daily, time of teaching practice and thoughts of changing career increase, the emotional exhaustion increases as well. Professional achievement decreases as the frequency of thinking of changing career increases.