This study was carried out to investigate work analysis by use of work sampling and productivity of school feeding at three elementary schools in Seoul. The results were as follows: 1. In the mean work percent of dietitians The direct work functions showed the highest, as the mean work percent was 40.4% for the direct work functions, 29.9% for the indirect work functions and 29.8% for the delays. Among the direct work functions, routine clerical was 30.9%, and receiving was 9.5%. 2. In the mean work percent of bakers The direct work functions (73.5%) marked the highest. Among those, cooking was 41.8%, transportation was 15.9%, and cleaning was 8.5%. 3. In the mean work percent of workers The direct work functions (78.0%) were the highest. Among those, the decreasing order was cooking (32.3%), cleaning (27.8%), and transportation (13.8%). 4. Work percent per labor hour The work percent per labor hour of dietitians was higher in the morning than in the afternoon, while they continued to work even during the lunch time. Bakers usually worked in the morning, but rarely worked in the afternoon. Workers had lunch and break time after their food service. In the school aided by parents volunteers, the total work time of workers was reduced by an hour and their work percent in the afternoon was high. 5. The number of meals served per labor hour was 32.6 meals, and the labor time spent per served meal was 1.8 minutes.