OBJECTIVES: We aimed to study the workload of traumatologist’s and analyze legal documents and materials relevant to medical professionals’ workload and labor standards. METHODS: The research model of cross sectional study was utilized. In order to study the workload of doctors working at Trauma center, we used organization based observation and questionnaires to (1) define core job structure by observation, (2) to evaluate by questionnaires with  indicators of “Job evaluation”. RESULTS: Data was collected through 8 hours of observation and  assessment of documents; It was used to evaluate traumatologists’s workload in accordance with chronometrage method. In general, 385 minutes, which is after the deduction of 60 minutes of lunch break and short time breaks from 480 minutes of doctors’ daily working hours, should be used for work. However, the average daily working time for study participants was 454.8 minutes, which is 69.8 minutes more than the expected time. The daily workload by time is seen doctors use 75.4% of their time for health care services, 21.9% for filling initial formats, 5.4% for PH care services; and 4.2% for pre-service. Moreover, 3.7% of time was spent for downtime that was not caused by waiting for next client or nurses. CONCLUSIONS: