We propose a style of group-working study in dressmaking education where students make PC based multi-media teaching materials by themselves. In the course, students are lead to make group presentations and learn each other's multi-media contents of dressmaking education. We make a student survey and find that 82% of the students' comments positively say the proposed style of lecture is good enough, 87% of the students' comments say they actively participate into the group working, and that 91% of the students' comments say the lecture is expected to be useful for future application. With these results, we find that making PC based multi-media contents through the group-working study can be useful and presents a new style of e-Learning in dressmaking education. The obtained files or contents can be accessed at anytime from anywhere by the students themselves. We expect that the style of e-Learning meets various lifestyles of the today's students.