Objective : The purpose of this study is to apply lifestyle redesign program to college students majoring in occupational therapy to find out the effects on lifestyle, occupational performance, time use, and quality of life. Methods : For 26 college students, the Korean Wellness Life Style Scale (KWLISS) was used to measure lifestyle, the Canadian Occupational Performance Measure (COPM) was used to measure occupational performance, Time Structure Questionnaire (TSQ) was used to measure time use, and the World Health Organization's Quality of Life Abbreviated Version (WHOQOL-Bref) was used to measure quality of life. A Wilcoxon code ranking test was performed to compare before and after intervention. Results : After intervention, the lifestyle type was changed for the highest from the occupational balance type (65.39%) to the learning (labor) overdose type (42.30%), and the mental and intellectual lifestyles showed significant results (p<.05). After the lifestyle redesign program, there were also significant differences in college students' occupational performance, time use, and overall quality of life (p<.05). Conclusion : Lifestyle redesign programs can be used as a form of intervention to improve college students' lifestyle and occupational performance, time use, and quality of life. In the future, research on applying lifestyle redesign programs to various groups should be continuously conducted.