Abstract: Fluid mechanics is a basic course for undergraduates majoring in mechanics and mechanical engineering. As it involves many concepts of mathematics and physics, complex formulas, abstract theories and wide applications, fluid mechanics is regarded as one of the most difficult courses for teachers and students alike. This paper proposes a method of interdisciplinary teaching of fluid mechanics and other mechanics courses, such as theoretical mechanics, materials mechanics and electrodynamics. By making a full use of the links among these mechanics courses, students can review the knowledge of other mechanics courses while learning fluid mechanics, and deepen their understanding of fluid, solid, rigid body and electromagnetic field through comparisons. Thus they could obtain an overall vision of mechanics and the teaching effect would be improved.