Results: After surveyed 150 clinical nurses, the most common cause lead to stress among nurese is number of work, the hightest stress's factor is overload, especially who have to work during break time (2, 98); a lot of paperwork (2.94), lack of employees to share work (2.93), do not have time to support pateint's family (2.63), do not have enough time to complete duties (2.58).