Nursing staff exposed to musculoskeletal problems associated with work while providing nursing care because of the erroneous practice of mechanical body, This study aimed to assess the level of nursing staff information about the use of mechanical body and the extent of their use of mechanical body within the nursing activities ,This study was conducted on the author of a sample of 65 nurse in surgery and internal and intensive care at University Hospital Assad where he was interviewed every nurse on the end were evaluated their knowledge by assessing information form was then assess how their use of body mechanics within specific activities in nursing care using the observational checklist , the study concluded that the level of information and practices of nursing staff about mechanical body ranged between poor and average, the study recommended the need to raise the level of information and practices of nursing staff about good mechanical body through training and educational programs and lectures.