The purpose of study is to know that first one administer to promote the stundents' department selecting factors under the system of departmental distinguishing in the School of Tourism Ming Chuan University (MCU) after the sophomore year in 1999. Since the time and being the first to operate, we do not understand that the system of departmental distinguishing in the School of Tourism MCU after the sophomore year is better or not, and what factors will be effecting stundents' department selecting decisions are not concluded by the public. Therefore, we thought that is value of the research. In order to improve and percept the system, we hope that we can make suggests for School of Tourism MCU. The instrument of study is questionnaires of investigation. The population of research is 661 students form the School of Tourism MCU. There are 505 validity samples received with a valid rate of 76.4%. We are finding that factors it will be most effect stundents' department selecting are personal interest and occupation in the future then other factors. The others be also concerned to promote stundents' department differential selecting that are importance effect with curriculums designing, professor's professional skill, heuristic student' interest and unlimited choosing courses for the disoblige students.