The purpose of this study was analyzed the general factors that influence school dietitians` satisfaction from their regular duties, the current status of food distribution to students and the relationship between dietitians and their governing authorities. Dietitians of primary school had higher score on direct management and working career. High school dietitian had higher scores on consignment management, freedom in amount of food distribution and number of meals a day. The highest score was on the relationship with other coworkers and the lowest score was on the poor working environment and salary. In general, dietitians in all schools are not satisfied the working environment and salary. Depending upon the duty time, there were differences in the nature of their duties. There was also a significant difference in the nature of duties and the professionalism based on the average income. Even though they got paid less, they felt satisfaction because of the less working times. The amount of labor for those in primary schools was more than the one for dietitians in high schools. It is likely that they got more satisfied when other related people feel satisfied with their own things and duties based on the nature of the duties, discretion of duties, professionalism, relationship with other coworkers and participation in decision making process. It is to develop the nature of the duties for all the dietitians in order to launch the new and right ideas in meal plans for students. It is also to promote and uphold the professionalism and efficient management programs in association with the stable human resources. Assuming we will come up with a wide and broad nationwide survey, and further research shall be more reliable and objective than any others.