In geotechnical engineering, rock mass hydraulic is a new comprehensive interdisciplinary with great importance for post-graduate students. During the teaching of this course, several major problems appear. For students, the problems are lack of study interest and weak in the fundamental professional knowledge. On the other hand, the problems such as poor laboratory condition, insufficient in practical teaching link and the limit of academic level and professional accomplishment of teachers also exist. Based on the above issues, combined with the personal teaching experience, this paper discusses general reform ideas for the rock mass hydraulics in geotechnical engineering, and proposes a creative teaching approach for this course.