Hospitals accomodate patients who have a high risk of infection due to reduced immunity as well as people who require surgical, medical or other treatments. Consequently, the role of clinical nurses, who come into close contact with these patients is very important in the control of nosocomial infection. This study was done to investigate and compare the level of perception of the importance of the control of nosocomial infections as well as the level of actual performance, and the level of satisfaction with the control of nosocomial infection by the clinical nurses. Thus, the purpose of this study is to contribute basic data for improving policies and educational programs to control nosocomial infection. A summary of the survey results is as follows. 1) The means of scores on all categories of the inquiry were 4. 51 for awareness 4.42 for actual performance, and 3.20 for satisfaction, of a possible high score of 5.00. 2) Correlations of the level of perception of importance between characteristics of nurses and hospital control of nosocomial infection differed significantly according to the type of hospital establishment type (p=.005), age(p=.000), career(p=.000), position (p=.002), and regular conferences on infection control in working departments(p=.003), Correlation of the level of actual performance between characteristics of nurses and hospital control of nosocomial infection diffesed significantly according to type of hospital(p=.000), hospital size (p=.009), working department(p=.000), age(p=.000), career (p=.000), school career(p=.040), position (p=.000), education experience on nosocomial infection(p=.020), and regular conferences on infection control in working department(p=.000). Correlation of degree of satisfaction between characteristics of nurses and hospital control of nosocomial infection also differed significantly according to the type of hospital establishment (p=.003), working department(p=.000), age (p=.000), and regular conferences on infection control in working department (p=.000). 3) Correlation between clinical nurses, level of perception of importance and actual level of performance for the control of nosocomial infection was relatively positive (r=.57, p=.000). Correlation between clinical nurses degree of satisfaction and level of actual performance for control of nosocomial infection was relatively positive (r=.47, p=.000). Correlation between clinical nurses, level of perception of importance and degree of satisfaction degree with the control of nosocomial infection was also relatively positive (r=.27, p=.000).