The purpose of this study was to explore the nature and progressional change in consciousness of KMU students about the shipboard-life which appeared though regimental dormitory life. An empirical study was carried out to exam in the perceptual differences not only on sea faring as a job but also on preliminary shipboard-life among each grades. The data analyzing perceptual differences on seafaring and preliminary shipboard -life of KMU students were collected from 450 students selected from 3 different kinds of populations -(1) senior students, (2) sophomore students, (3) freshmen-by the use of questionnaire method. The pearson's test for goodness offit and factor analysis were used to analyze the data.