The Glasgow scale is a crucial tool for evaluating the awareness level of patients with neurological disorders in intensive care units and neurological centers. This scale involves three items for assessing: the degree of eye response, the degree of verbal response, and the degree of motor response in a range between 3-15 score, where 3 is the lowest score on the scale, which indicates loss of consciousness or a deep coma, and 15 is the highest score, which represents full consciousness. The study aims to evaluate the understanding of the Glasgow coma scale among Intensive Care Unit Staff. A descriptive study (cross-sectional design) was used. A study was carried out in the Intensive Care Unit at Al-Diwaniya Teaching Hospital in The Al-Dıwanıyah City,Iraq. The study was conducted from November 2sd , 2023, to 16th April , 2024. Non-probability (purposive) sample consisting of (50 staff) working in the ICU. The results of this study included (64%) are female and (36%) are male from 50 staffs in intensive care unit. while , the overall level of ıntensive care unit staffs' knowledge about the glasgow coma scale was fair level (68%) at mean of scores (1.42). The researchers concluded that the level nurses' and anesthesia technicians' knowledge about the Glasgow coma scale was not at the level required to fit with the critical and special nature of ICU. The study recommended activating the work of the continuous medical education unit correctly in order to give educational courses related to Glasgow coma scale