Mental health team includes a psychiatrist, a psychiatric nurse, psychologist and social workers. Mental health workers are more stressful than other sector’s workers. Mental workers are working with mental patients, who have chronic,severe and poor prognosis disorders for long time, and may have Work Burnout Syndrome (WBS). Worldwide, many researches are used Maslach Burnout Inventory (MBI) for assessing WBS. Our goal was to detect risk factors of WBS among mental health workers. We conducted the survey among workers mental (doctors, nurses and assistant nurses) and study design was a descriptive cross-sectional. We are used a questionnaire, is including MBI. Our subjects were 103 workers, who were 27 (26,2%) doctors, 32 (31,1%) nursesand 44 (42,75) nurse- assistant. They were 15 (14,6%) male and 88 (85,4%) female and average age was 38.21 (SD = 8.92). The worker’s average professional working year was 13.09 (SD = 9.76). Most of subjects (n=63 61.2%) were shift-workers and they (n=99 96.1%) have high workload. We determined 3 groups by level of MBS among mental workers, such as the group with EE’s high scale (n = 27; 27%), thegroup with DP’s high scale (n = 23; 22.8%) and the group with PA’s high scale (n = 50; 50.5%).MBS was high among NMHC’s workers. However their work time is low, but theyhave risk factors for MBI such as high workloads, shift work, number of patients. Workers of emergency department had termination burnout syndrome more than other acute departments. This was associated with working condition.