Based on the teaching idea of “Innovation, Higher order and Challenge degree”, the research oriented teaching method of theoretical mechanics is put forward. Examples of practical engineering problems, new science and technology, and power engineering are introduced. The students' methods of mechanical modeling and analyzing practical problems, as well as their national feelings and noble values are cultivated. Through flipped classroom, the learning enthusiasm of students can be aroused. Through the course paper, students are trained in literature review, critical thinking, mechanical modeling, innovative design and research on complex engineering problems. The practice results show that students’ learning enthusiasm, flipped classroom participation and the teaching effect of the course have been effectively improved.