The purpose of this study is to analyze the efficiency and working conditions of the patternwork departments by surveying the apparel manufacturing companies sampled in Seoul for their organization, working enviornment and technology of their patternwork departments, and thereby, find the ways to promote the functions of the patternwork department. The results of this study can be summarized as follows; 1. As a result of analyzing the working environment of patternwork departments, it was found that the problems counted by most of the pattern workers were lack of workforce, unhygienic or unpleasant workplaces. 2. As a consequence of analyzing the sample production in terms of tacking methods and times, They rarely tacked the white cotton. Such an omission of tacking procedure may serve to save time, but if a sewing error occurs, the working time would rather be longer due to the defects of pattern to be remedied. 3. As a result of reviewing the general patternwork conditions, it was found that the patterns were still worked out in two dimensions. On the other hand, more than 60% of the pattern workers were applying to their patternworks the styles which they had learned from their seniors. Few patterns are being developed in conformity to apparel trends or body shape changes. 4. As a consequence of examining the problems involving the production of patternsl, the problems involved primarily the patterns incised off no-dart pattern and body structure, and in light of items, involved mainly the trousers and in light of material, involved much the stretch or velvet. Moreover, it is deemed necessary to establish a special institute devoted to a systematic development of pattern technology. 5. Most of the CAD patternworks are used not for pattern designing but for grading and marking works, which suggests that pattern workers need to be educated on this new technology for more diverse and precise patternworks. 6. Lastly, as a result of examining the conditions of patternwork departments and their relevant works, most of the pattern workers were found to be subject to irregular and excessive workload, having little time to produce good patterns. This finding suggests that it is necessary to mandate the pattern workers to more involve the commodity planning.