The major of mechanical engineering undertakes the important task of cultivating compound innovative talents for advanced equipment manufacturing． College physics，as a basic course for science and engineering majors in colleges and universities，meets the requirements of the “new engineering disciplines” reform，and it is extremely important to explore the teaching content and teaching methods of college physics to adapt to the training of new talents in mechanical engineering．It analyzes the characteristics of college physics theory and experiment teaching，and proposes new ways of innovative teaching contents，teaching methods and optimization of examination methods，so as to strengthen the connection between college physics and mechanical engineering specialty courses and improve the teaching effect．