The purpose of this study was to investigate actual conditions of exercise and health consciousness in employees in 20s and 30s, and to identify factors influencing the exercise motivations. Subjects of the study were 433 employees working for an electronics manufacturer. We developed the questionnaires, and distributed them to the subjects at their medical check-up in April, 2002. The questionnaires included subjects' attributes (age, sex, living with family or alone, BMI), actual conditions of exercise, exercise motivations, and health consciousness. We analyzed the data of 372 of 382 respondents (effective response rate : 85.9%). Of the respondents, 31.2% reported that they "do regularly exercise," and 16.7% engaged in exercise more than twice a week. For motivations, 57.8% reported that they "want to exercise," while women (73.3%) were significantly more motivated than men (58.0%) (p<0.01). Women were found to be less active in exercise although they were motivated. As a result of multiple regression analysis, factors influencing exercise motivations were sex, age, BMI and health consciousness (p<0.001). These results suggest that health conscious people have higher motivations for exercise than those who regularly exercise.