Abstract: Industrial Science (SI) is an obligatory course for engineering majors in French preparatory school. SI course is designed to train the students' abilities of resolving complex problems when facing the real industrial system. Practical work is the main segment of SI course with its teaching content and mode highly consistent with the training objectives of French engineer cultivation. This paper introduces the relationship between the theoretical and practical teaching content, training purpose, practical teaching mode, device characteristics, and so on. By comparing the practical teaching methods between Chinese and French system, some available and useful suggestions are given for the future reform on the engineer education system, especially the reform on the practical teaching.